My boyfriend believes he raped me

A month back we were both having a hard time and decided to go on a "break" for a few weeks. We established rules before the break including that we were still exclusive with each other, lived together, pay bills together, cook, and eat all of our meals together- in other words- we together in all but name. Which I know sounds dump but it was what we needed.

During this break we had sex a few times. I wasn't really into it and didn't really care for sex. He would come on to me and I would think "ah whatever, I know it will help him relax... and really needs to relax".

He has always made it a point to ask me and I said yes. I never told him know. I consented to having sex- I just didn't enjoy it and wasn't into it.

The other day we were talking about our "best time". When he said it was over the break I rolled my eyes- I know it was rude but I couldn't help it. He asked me why I did and I told him the truth. I didn't really feel like having sexy but I did it anyways because I love him and I wanted him to feel good.

He has been absolutely heartbroken since then. He honestly feels like he raped me because I wasn't into it and he feels like he pressured me. He has been calling himself a monster and won't listen to me.

I'm really at a lost here.

Update: I told him I consented and I told not to feel bad because it wasn't rape. And no, I don't give him regular pity sex. He was going through some stuff at the time and I was trying to be supportive.