I know he would hook up with me if i asked him too. is this a bad idea.
Answer:
Not if you both agree .Have Fun.
Answer:
if its just for fun u should do it but u should make sure that he doesnt have any real feelings for you because that would hurt his feelings but if you guys are just playing have fun
Answer:
Yes, its always a bad idea. I have this theory that once you have crossed over a bridge, and the bridge was broken (which it must be, because you broke up with this person)then you dont need to go back and cross it again. There are plenty of other guys out there to hook up with.