IDK what’s causing me to avoid having sex and I feel guilty. Help

(NSFW) So these past two months, my need to have sex has gone down significantly. And there’s some reasons I can think of, but I can’t really pin point it.

• First off, I’ve been having long and stressful days at work, and it effects me to the point that it comes up as nightmares, my body is tired even on days I don’t have work, the thought of me having work the next day makes me just want to chill and cuddle.

• Secondly, more than sex, I love cuddling and comfort. And I don’t really get that much cuddling from my boyfriend. On the other hand, he likes cuddling too, but he loves sex, so he seems to be the one always initiating.

• Third, the guilt. I feel bad for not giving him enough bj’s, hj’s, and just sex in general. In the beginning of our relationship, he had some problems down there (really dry skin) that made me not want to give him bj’s but we were still very sexually active. But even then, he would always tell me how he feels unloved because I don’t give him enough bj’s. Now, he feels even more unloved because I don’t initiate anything and we barely have anything going on. The last month, we only had sex 6 times, and he seemed really disappointed about that. But being guilty about it, has kind of led me to feel like I HAVE to have sex with him.

• Fourth, I’m always on top. Don’t get me wrong, I love being on top, but I just can’t do it when I’ve just gotten back from work, or when I’ve just been woken up and all I want to do is take a shower. We’ve done other positions, but his favorite is when I’m on top. Even if when I ask him if it’s ok that I’m not on top this time, he says yes, and while we’re having sex he’ll tell me “ I can only cum if you’re on top” And it takes him 30-40 minutes to cum, so a lot of the times, towards the end, I’m out of breath and my only goal is to get him to cum.

• Fifth. My fucking stomach problems. He asks me for sex a lot either in the morning, or night when my stomach is just acting up. I wake up feeling nauseous and having to go to the toilet for half an hour. I go to sleep after failing to take a single shit and I’m nauseous. He’s started to believe that I just use my stomach problems as an excuse to not have sex with him.

I really do love him though. And I want to feel the need for sex again. If anyone else has experienced this, how did you overcome it with your partner? What do it do?🥲

(SHORT VERSION) Idk reason for my un- hornyness Some reasons

1. Work shit
2. Love language difference
3. Guilt
4. I’m always on top
5. Stomach problems. What do I do?