Got divorced,went back to an old FWB.

I have been divorced for three months now after being with him for seven years feeling incredibly lonely after he replaced me within two weeks of me moving out I got back I touch with a fwb I had in high school right before I met my ex and it's been amazing! I use to have feelings for him when we were 15 but he didn't feel the same ( how I ended up with the ex-husband) and now so many years later it's like the same thing all over again except I'm thinking maybe he may possibly have some feelings for me now we spend a lot of time together . Should I not give up this time with him or just move on ? Any advice will be appreciated