fwb, 10yrs later?

10+ years ago i had a fwb that lasted for about 5 years. i got pregnant by another guy and we stopped seeing each other. we both moved on with no fights or arguments, a clean break so to say. he got married and i was in a relationship til jan. i guess he got a divorce in there someplace as well. well he got my number and started texting me wanting to see me. i blew him off for several weeks but ran acroos him on thanksgiving and we hooked up. i thought we were just going to have something similar to what we had before but he was totally different! he is almost 40 and has gained a lot of weight! while i just turned 35 and dont look any different than when i was 22! he acted like it was a miracle to be with me! he said, "i cant believe you are here in my car talking to me! its like a dream!" we both live with our parents after our splits, so privacy is an issue. but i dont know what he is looking for now! i definately have the upper hand this time around. he is the one pining for me and that feels odd. i loved him so much before and i dont know what to do now!