Boyfriend isn’t finishing

This is kind of embarrassing but omg I’m starting to feel some type of way about it.

We have sex now like once or twice A MONTH (we’ve been together for over two years and don’t live together)

Most of the time we eat dinner then go to watch tv in my room where he falls asleep real early. Lately its only ever if he actually sleeps here all night and we wake up in the AM to have sex. I do love me some morning sex BUT the past two times within the past few weeks he just goes soft midway through. Like at the beginning we’re going at it and he pauses like “its been a while I don’t wanna finish too early” but then a few minutes later its “fuck i’m sorry i don’t know what happened” and its done.

I don’t know what to do or think… am I the problem? We snuggled for a bit after this morning’s incident and I started quietly crying bc what if I am the issue. And wtf do I do