Yall

Basically I've known this guy for a year now and I've always been mildly attracted to him but recently developed stronger feelings for him. I've started to get closer to him and him to me, I kind of guessed that he liked me too. But he had a girlfriend at the time so I just pretended to have no feelings for him in that way.
However we started seeing each other more and more then one time we went to an orchard (I know that sounds weird, but yeah we were just pratting about). We kissed and just got really physically close...
Oh by the way, he had just broke up with his girlfriend like two weeks before.
I know what your thinking, these circumstances are just screaming REBOUND!!! He said he has feelings for me and that he shouldn't of acted on them because he just broke up with his girlfriend (who by the way cheated on him in the first week they were going out.. plus he said that he was in a relationship he didnt want to be in) Yeah anyway, I asked him if I was the rebound girl, he said no because he didn't need one and that he liked me too much.
So we decided to be just friends, even though I want to be his girlfriend, but he needs time to figure out things with the ex (shes not getting the break-up, she thinks that they will get back together)
But the thing is what should I do now!? Its been 3 weeks since it happened and to be honest its been really hard to treat him as a friend because all I want to do is kiss him...Should I give him time and wait or just try and get over him?