Knowing that is not enough. For now, working on you is the first key to unlocking a future chock full of infinite possibilities. Whatever you want, wants you too. It is now time to STOP blaming someone else for the misery you are creating for yourself. It's time to forgive them so the hurt will heal.
Nothing is unforgivable.
That is only and always your choice too. The hurts won't heal until you will allow yourself to forgive . If you think that he or she was solely responsible because of what they did or didn't do, then you are missing the point. It's time to let go of that and focus on taking full responsibility for the choices that are available to you right now. Blaming others will only and always keep you stuck right where you are.