Confused Friends with Benefits ???

So I’ve been fucking this guy on and off for about 9 months now and every time I feel myself get a little jealous thinking about him fucking other girls or something I back up because I don’t want to say something when it’s not my place. He says he wants me all to himself but I can’t stop thinking about the fact that I’m all his but he’s not all mine and he knows I’m not messing around with anyone else so it’s like the perfect opportunity to take advantage right ?

And because we met through friends I know he’s been a big player all his life. Hasn’t been faithful to a relationship once. But I also tell myself I’m different from his exes but I also know that I could never change him so it doesn’t matter. I don’t know what to do sometimes while having sex I just think “can he just cum in me this time so we can be stuck with each other already lol”

I told him once I know he got a lot of girls all over him all the time and he told me that wasn’t true or at least not anymore... Also recently he’s been wanting me to spend the night and cook me dinner when I come from work... I don’t I’m confused....

Help I’m driving myself crazy