RE: Men trying hard
You rang?
From Lystra’s web page:
Now I’m getting turned on. 
Lystra said:
Interesting dilemma. Welcome to the world of dating. Lots of good advice already about understanding that he’s young, you can’t change him, find what makes you happy and pursue that, see if there are mutual interests to help pursue with him, try to give him some space to play on his own. And in the end, be true to you. If there’s nothing in common, nothing to share, then realize that and move on. (Very hard thing to do. Moving on without some dramatic reason.)
Some reasonable advice for a 15 year old - it’s okay to date around, not have one steady boyfriend. Although you did mention your troubles, so I understand having some stability seems important. Just realize that you can date without getting deeply involved. And I’ll be blunt and say that includes sex. You’re 15 - don’t rush the sex. Even if you’ve been wild, it’s okay to regain control, become “tame” again. Don’t let anyone pressure you into doing what you aren’t ready for. Don’t let anyone pressure you into sex. Don’t trade sex for love - it doesn’t work that way. There are lots of games, lots of ploys to manipulate young girls. Games like calling you a prude, or a slut, or saying everyone else does it, or saying guys need it. Be true to you.
He probably doesn’t, and you probably don’t understand him very well - and he probably doesn’t feel comfortable opening up to you and telling you all his troubles. If you’re lucky, things will make more sense when you’re older. If not, you’ll be like the rest of us.
Truly, one of the hardest problems is understanding yourself. If you don’t understand yourself, you can’t share with others.
“Somewhat a crackwhore”? I didn’t know that was something you could do partway - isn’t that like being “sorta pregnant”? 
Seriously, it’s good that you’re trying to pull your life back together. Sadly, you’re probably not going to get the respect and attention you desire (at least the way you desire it), at least for some time. Running away kinda destroys trust. I hope whatever troubles prompted your running away, you have found a way to address them and work to resolve them.
Don’t we all.
Laudable. You care about him, and want to be a part of his happiness. But also, it seems you’re seeking validation for yourself in him, the attention he pays you, and how much fun you are for him. You must realize that you cannot judge yourself by how much attention he pays you, vs how much time he spends on the videogames. His priorities are not a commentary on your value, it is not a sign of a problem with you. In fact, it’s very natural.
Trying to change him won’t work. Don’t expect him to change. Evaluate whether you’re getting what you want and need from your relationship, or not. If not, then move on. If you can, do so without hurt feelings by explaining as best you can it isn’t his fault (because it really isn’t).
Hope that helps.