Question, i had a b/f and he now he has a new girlfreind and....?

He cheated with me on her, not right I know that is why we are not talking but, now I have met another guy who looks like my ex. I guess i still like my ex and he likes me but, we did break uo because I wanted commitment. Now that I know he cheats on a g/f he has I know he would probablly do the same. So this new guy reminds me of my ex, the way he looks.....So I am attracted to the new guy because he looks like my ex or because he is just my type? Has anyone been in a siyuation where someone new they meet looks alot like an ex, and what did you do? I want to have a real and honest relationship, no games etc but, it is a weird situation.