Whose opinion of my FWB sounds more realistic ?

I was fwb with a guy who works at the place I used to work at. We hooked up a few times and everything seemed fine but he seemed like he had feelings for sure. He would talk all day every day, always say goodnight and good morning, if plans fell through he wanted a reason, he would flirt a lot, and one night he even seemed.. jealous? of another potential sexual partner, he also has the boundary of neither of us hooking up with other people, etc. Then the other night plans fell through because I was having family issues and he kept sticking for an explanation. I basically just told him I didn’t feel like I owed him an explanation if we were only friends with benefits. It took an odd turn and he started saying “well you’re the one who only wanted that” and then it just spiraled into him opening up about being scared about relationships, being unsure of his feelings, felt like our communication wasn’t in a good spot, things like that, but that he felt like he liked me and wanted to figure it out. Then last night I went to the job to drop stuff off to one of my friends and an older male coworker (who is married but has seemed interested in me before) started talking to me. My fwb saw it and said he didn’t really like me talking to him and how he was annoyed by it but wasn’t going to tell me who to talk to. We argued a tiny bit only because I didn’t understand what he was saying and he was getting mad and was busy with work. Then we just didn’t end up hanging out either. I woke up this morning and he texted me and said that with the arguing that maybe it won’t work out, how maybe he’s misinterpreting his feelings for me, and how he’s still hesitant about a relationship, and feels like he won’t be able to offer enough. Now he says he thinks maybe he just likes me as in “he genuinely likes me and thinks I’m hot” and thinks I want more that he can’t do. He said he wanted time to think and we could talk later. So I just let it go and am anticipating it going back to only sex if anything at all lol.

My friend (not anyone previous mentioned) told me he felt it was a toxic and sleazy action to get pussy easier. But to me it doesn’t seem that way? To me he just seems confused, insecure, and unsure.