What is some way I can make a man leave his girlfriend?

He isn't going to leave her. Sorry but you are the other woman and he won't consider it. Besides, don't you want a guy who wants to be only with you? Don't you think you deserve to be happy and have your own boyfriend? You don't want or need this guy. He is using you and you are a much better person to have someone treat you like that. Dump the benefits and meet mr. Right. Besides, if he is cheating on her, he will cheat on you too.

I'm going to be so honest with you...
YOU DO NOT WANT TO BE WITH HIM!
If he cheats on her, then he will cheat on you, and that's a promise.
I see your age and everything, and I know Girls mature faster than boys, but take my advice:
That will only end in a broken heart.
You really shouldn't be in that situation because you gotta believe you deserve so much more than what he is will to give you.
Good Luck

Sincerely,
A Loving Black Man

I'm sorry but he probably won't leave her. It's best not to meddle anyways. If it's not meant to be then it's not meant to be. There'll be someone else who will catch your eye :)

He is obviously an asshole if he cheats on his real girlfriend with a booty call (you). If you did steal him away, he would just end up playing you for another girl. Have some respect for yourself.

Why would he leave his girlfriend for you anyway? You've been messing around with him for over 2 years, if he wanted to date you he would have by now. Wake up and smell the coffee - he is just using you for sex. You might more than friends with benefits, but obviously he doesn't.

If you have been talking to this guy for over 2 years and he has not left his girlfriend yet, it ain't happening. Sorry to say it but it is true. You should want better for yourself anyway. Like the song says: if he ain't gonna love you the way he should let it go.