Is he just not into me anymore?

I’ve been with my SO for 10 plus years. As of late he doesn’t have physical sex with me anymore. When we do anything sexual it’s only foreplay. He will also do oral on me. I don’t mind it, honestly. But it’s been over a year like this. If we do have penetration/sex it’s not fully and he’ll stop and make me finish with a handjob. We only have sex a few times a month. When I’ve expressed wanting sex he gets mad and calls me ungrateful.

Is he not into me anymore? Or is this just a phase?

We are 32 and 35.