Should I wait or move on? Read description?

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You need to move on. Nothing good will come out of staying with him. He currently has a girlfriend that he cheated on with you. That doesn't mean you're special, that means that he isn't to be trusted. If he did that behind her back, he will (and probably did) do it behind your back. Every sweet thing he's telling you to make you feel like you're special to him, he's telling her the same things. Why would you want a guy who goes back and forth between you and other girls, and told you right out that he can't decide who he wants more? Him telling you that means he doesn't think much of you. I guarantee if you made a fake account on Facebook or whatever you guys use, of a really hot girl and started messaging him and pretending to be interested in him, he would suddenly think SHE'S special and the one for him. If you want a boyfriend, you should find one who only wants YOU and doesn't tell you to hang around and wait til he's done feeling up some other girl's boobs. It's not right, you can do better.