I know it sounds stupid but just try looking for someone new? Doesn't have to be a one night stand but go out on the pull with your friends- or just get out meeting people. Sure, meet up with him- do you know his wife and kids? You could meet up with all of them?
Yeah, you said it. Just try to move on.
I don't think you should meet up with him to be honest - it's just going to make you keep thinking about him!
Find someone else.
It's what I do.
Walk away, don't wreck a family over it. You can get over it if you really try, and the chances of you and him working out seem slim, is it really worth it?
First of all think about this....would you like to have someone that had left his wife or girlfriend to be with you? what would you say if this will happen to you after a few months or years of being together with him...he just fells in love with another girl and leaves you like he did before....
and something else...did you ever think at the possibility that your 'love' for this person could be actualy just an obsession to have something that you know you can not have...?i don't know yu but you should analyse all aspects...good luck