I'm not the only one in his eyes what can I do?

I love him and he loves me but he also likes another girl but I swear it's just the fact that she rubs up to him like a hooker.

I'd love not to fight over him because I hate it but I don't want to lose him. The thing is, he's all the way around the world and won't be back until a couple weeks now.

I need strategies badly anybody got any that make me look good yet gives the girl a bad stabbing in the heart?