He won’t let himself cum.....

My bf and I have been together for almost a year. Lately he’s been complaining about being sexually frustrated, but we have sex. He’s been using this as an excuse for any unkind behavior he has. We had sex twice Friday, back to back. The second time he literally pulled out, said I’m about to cum and grabbed himself so he wouldn’t. Sunday we got interrupted, so we didn’t finish. But it’s like sex is all he can talk about. Or his being a smart ass about anything else. And he’ll talk about how many times I orgasm. It’s starting to make me feel weird and uncomfortable, bc he’s talking as if I neglect him, but it’s him doing it. And on top of that, the only foreplay he knows is rubbing his dick or head...so when he initiates sex it usually starts with 69. I’ve never been with a man who does this. Is this strange?