FWB ?

Hi all! I got a FWB question.

I met this man through an online dating site. We are both divorced with kids. He is almost 10 years younger and has a young kid. His divorce more recent that mine (as in very recent and a big red flag). We enjoyed a few dates and adult fun. He said (which I knew) he is not ready for a relationship. I said great neither am I and we settled into a mutually satisfying FWB situation and I am fine with that. We use protection (condoms) for all encounters. He has wanted to stay at my place (he lives 10 minutes from me) after we have sex and I have said absolutely not and sent him on his way. He seemed hurt by that.

Fast forward to tonight. I have had a HORRIBLE week at work and told him I needed to go out and blow off some steam. He asked if I had a hookup. I require the use of condoms with him and anyone else I sleep with. I don’t ask him about his sexual adventures with other woman. I told him that we use protection with each other. I don’t ask him about his activities and I don’t think he should ask me. Am I wrong? He is has blown up my phone telling me not once, not twice, but three times he will be my backup plan. What gives?