Am I just a rebound or what?

i would give him time hun. If you both like each other than he will eventually be ready and be able to give you 100 percent of his attention. If you make him settle to quickly then you might be a rebound and regret it. They might get back together you never know. But wouldnt you rather wait then be a rebound object. Unles of course you just want some fun and just a fling you never know might turn into something big :) Be carefull and be safe :)