Many women may argue that their boyfriend isn't one of the "do not date" people because they like him and want him to deviate from the norm. Of course, even if a given individual shows some of these qualities, he might still be a decent guy. However, as a rule of thumb, if you aren't willing to fight for your relationship then it isn't really a relationship worth having. The first thing to understand is that there are two types of "do not date" guys: those who know they are "do not date" guys and those who don't realize it yet. For example, a certain guy might think he's a nice guy but after getting to know him better you realize that he's actually a jerk. This guy is being a "do not date" guy even though he doesn't know it yet. On the other hand, a guy who knows that he's a jerk but thinks he's not might decide not to put himself out there because he's scared of what others will think. Now, both of these cases are bad because no matter how much effort you make to get to know someone better they can always change their mind about seeing you again. If you aren't ready to fight for your relationship then you shouldn't expect anyone else to do it for you either.