Nobody Thinks I should Date Him!?

Ok, there's dis ex I have 4m like 3 yrs ago & we jus got back n touch & he says he wants 2 give it another try. Idk if I should or not bc I jus got out of a 2 yr relationship a month ago. Anyways, when me & the person in question were I dating I was the cheater so I figured that I owe it 2 him. Rite now, hes begging me 2 b his gf, but I keep stallin him. Im having 2 much fun not being in a relationship w him but still getting all the benefits(NO ), which isnt fair 2 him. I know Im not thinkn of dating him as a rebound guy, but Im still not sure if I should start a new relationship. I want 2, but I dont. Im so confused & indecisive. I also dont want him 2 stop talking 2 me because I won't date him either. I don't want 2 feel forced tho. I really like him, but he kind of acted crazy 2 all my friends from when we dated before but now in my opinion he's mellowed out but I can't get my friends and everyone else 2 see that. I know I shouldn't care but I do...what should I do?