How to convince my friend to break up with his girlfriend?

Okay, so we're all 15. His girlfriend cheated on him twice, and he keeps complaining about it and he definitely doesn't deserve her because he's such a good guy, but he won't break up with her. I want him to do better then her, and he wants to break up with her but he can't. What should I say to him to make him break up with her? Some good words of advice I should say? Thanks(:How to convince my friend to break up with his girlfriend?
Have sex with her and video tape it then show him the tape.How to convince my friend to break up with his girlfriend?
Tell him he is only 15 he is going to have a lot more girlfriends before he decides to stop looking and she is going to have a lot more boyfriends. I know it don't feel like it right now (I was 15 at one point in my life too) but you really are so young. Get him to go out with out her and show him how many fish are in the sea. Really I personally feel like no 15 yr old should be in a committed relationship. You have so much more in life to learn and you don't want to waste anytime worrying about a girl your not going to be with in the future. If she has cheated twice she is going to do it again. No one deserves to get cheated on. Tell him to tell her that he doesn't feel like this is working out and he don't feel like they are ready to be in a committed relationship that they are both looking for other things right now and his is to find someone who doesn't whore around on him. If he says that, that will either piss her off so much that she breaks up with him or she just might not say anything because she will be in shock but she will get over it. Really you are only 15 go out with friends have fun, but BE SAFE..
let him figured it out on his own, he will realise soon,





please answer mine guys


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Let him figure it out on his own. Yes he doesn't deserve to be treated like that but it's his decision.