Fluctuations in feelings in my relationship and not sure if it's normal?

I've been with my boyfriend for about 2 months. I find that my feelings are way stronger when we have sex or right after we have sex than other times. If we even go a few days without having sex, I feel myself start to get kind of bored and irritated and sometimes I even question whether I want to be with him or not. But usually, we have sex almost every night. So when we've had sex a few days in a row, I have a lot stronger feelings and am very happy with him, especially right afterwards. The first time I couldn't spend the night at his place (he was having problems with his back because he has a tiny bed), I went home and was so upset and lonely I thought I was definitely with the wrong person because I felt so disappointed and lonely. I know about oxytocin release during sex, but I'm wondering if this is a normal thing? In the past I've only ever slept with guys I wasn't in relationships with so I have experience with attachment but not such strong feelings of caring for someone. Is it normal for this to happen? What feelings should I trust, the ones after sex or the ones when we go days without it? I'm just kind of confused and need some guidance here.
Fluctuations in feelings in my relationship and not sure if it's normal?
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