[Off-topic] alljokingaside:
Varun-

You don't know me, nor do you know many of us, so why should you listen to advice that you consider useless? It's easy enough to block out people that you know and trust when they tell you something that goes against what you believe, in your heart-of-hearts to be true, so it must be that much easier to ignore a bunch of online strangers.

But you did bring the problem to the boards. Meaning, you might get advice that you find useful, even if a lot of it's advice you can discard. A lot of people seem to care enough to take the time to write their thoughts and feelings about this situation and I hope that you at least consider what they, what I have to say.

Ok.

First thing I have to tell you- take a deep, long breath. Rinse and repeat.

Second thing- she was never yours.

"Being yours" implies ownership and, man, you don't nor ever did own her. She's a person and people don't own another. You can't will her feelings and emotions into submission so that she feels and thinks what you want her to think. That isn't the way it works. She chose to be with you because you seem like a passionate, resourceful, interesting guy who she fell for. 8 years isn't nothing, but we do live in a modernizing world where people who've been together for decades split up. Consider that. Consider that people whose whole lives have been nothing but the other for decades- **** cultural boundaries on this issue- decide to take leave of their significant other because of something or another.

So, let's start with the assumption that she was never yours. This, honestly, is better because it means that though she didn't and never had to be with you, she chose to be with you deliberately, despite any problems that chalked up. She wanted to be with you. This is good.

Ok. That off the bat, let's talk about her. She found someone else. For the sake of convenience, let's assume that this isn't a game and she's dead serious. She likes someone else. Someone older and, in her eyes, more mature. And- what she sees in her eyes is what matters.

Again- I don't know you nor do I know her. But let me ask you this. If some guy that she was with before she met you, some childhood crush, some fling that she had for a month before she knew you, maxed out on sms messages, blew up her phone, went so far as to travel ...600-ish km to find her when she told this person that she wanted to be left alone, when she told this person (and maybe not directly, but still sent the message) that her wishes were that he'd leave her alone and that she wanted her wishes to be respected- what would you think of this guy? Different situations- yes- you were with her for a long time and the relationship you had was far deeper and more complex- but still relevant.

If she's the type that'd be creeped out by this type of behavior, then she'll definitely be creeped out by you. Well- suffocated. She either 1)didn't know this side of you existed and will be scared off or 2)will continue to assume that nothing in you has changed and will project that- will take it to mean that you are incapable of change. She's probably wary of sentiment and traps and will be on high alert for them. Any move to manipulate her, to convince her that her emotions and feelings and thoughts as false, to get her back to being yours will be taken as a sign of aggression, pushing her farther away from you. Any of the actions that you've been proposing deliberately and blatently disrespects her wishes and that will drive her farther away. Any signs of the immaturity that she dislikes will become things she detests if those things, those actions are brought to the forefront of her attention.

So take some time off. Relax. Find something to occupy your time. Watch every movie that you've been meaning to see and if you've already seen them, re-watch your favorites. Work on a new, cutting edge kernel or ROM or app. Take up a new hobby. Find out what interests you beside the objects in your world right now.

As most posters here have been saying, take time off. Going after her now would be like trying to hit the books after a 12-hour marathon at the library. If she hasn't responded, rather went to lengths to cut off ties, it means that she's saturated. She's had enough.

From what I understand, you had a rough fight with her. Since people generally don't leave after a single incident, I'm guessing that there was a trend, a pattern that emerged throughout the days, months, years that you were with each other, solid stone fights that chipped off and wore at her (probably you, too) and left pebbles that accumulated, that rose until it became a monument to something and- to her- something awful that her eyes could no longer avert. Become an eyesore charge with sentiment. If you want that mountain to fade, you will definitely have to give it some time. And that's the kicker- the mountain might never fade away or she might have her eyes on a new obstacle.

You say you love her. Love includes trust. You have to trust her, out here on a limb, even without hope, because love is the place where hope springs like water. It includes willful hopelessness. (Love sucks, no?) It's cliched, but cliched with reason.

Even if she cares still for you, she doesn't care for your behavior. Even if you manage to convince her now, that her emotions will surge and rise and flow over like a flood, there'll still be a kernel of doubt, that the same set of actions and attitudes that led her to leave will take root and override any positive vibes she might've been getting from you.

(And if that's true- and people tend not to change overnight (ie over the course of one incident)- then both you and her will be in this same rut again, this same pain and howling, and ask yourself- do you really want that?)

Do you want to bring her to a point where she feel the NEED to sever her ties with 8 years of history on such a symbolic day? If she wanted to spare you, she could've chosen any time afterwards or before. But she chose to tell you this on that specific day. She wanted to make her point and make her point drive home. It takes a lot to cause pain to those we care for. Trust me on this one. She wanted you to know. She wanted you to take her seriously. And it hurt her, too.

Send her one final message for now. Cede power. Right now, you are powerless with regards to this. Accept this and learn to be ok with it. IF her feelings for you are solid and real and as buoyant as you believe them to be, then a few weeks- hell, a few months- won't change it. Her feelings will bubble back and rise and she'll come back of her own free will. If she's just a flighty character, then why do you want her back? This will repeat itself and you'll have to jump rings and hoops, and then rings and hoops on fire, etc.

If you trust her and know her, and know and trusts that she loves you, then know that a man 3 years her senior won't mean a thing. He won't be able to connive her and deceive her like you think he will. If her feelings for you are as true as you believe them to be, then it'll eventually surface like oceans of water through a surface of oil. If they aren't, then it would've happened anyway, if not now, whenever.

As "flighty" as she might seem (and this is one impression that I'm getting of her from you), it's kind of a known fact that women are more mature, emotionally speaking, than men. Say that you'll let her go if that's what she truly wants, that you hope that she's happy, and that you'll continue to care for her. And mean it, because any insincerity, even in the future, will drive her away from you for good. IF not, then you really shouldn't bother, for both of your sakes.

Remember- she is a person and a woman, not a thing and a child. She knows that she can make up her own mind and will grow to hate anything that tries to force her to believe otherwise. Right now, you are trying to this. It's an unfortunate side effect from a sudden withdrawl from that first addiction. This is normal, these feelings. Learn to be ok. Take some time for yourself and see who you are without her and what you want. Maybe she'll be back, maybe she won't. If you really care for her, then let her grow as she wishes. Respect that.

Let yourself feel and feel the pain. Breathe deeply, exhale, repeat. Let it all ignite at once, let it all burn and burn high. Count, if you need to. Feel everything that you've been holding back, that you've been fighting back. Let it burn through, empty yourself out. Then start living again.

I wish you good luck and better fortunes.