I'm uncertain about my feelings regarding my relationship.

I'm not going to elaborate too much, but the situation I'm facing is causing me to rethink a lot of things. For starters, I've been in several unhealthy relationships—one where someone assaulted me, others where partners tried to pressure me, and I either responded with a firm "NO" or ultimately capitulated. There were also relationships where my disinterest led to pettiness or sadness from my partner when they didn't get their way. While these experiences are not all equally severe, none of them contribute to a healthy relationship, that's for sure. Currently, I'm grappling with a similar issue again. I have several health conditions and take medication that significantly impacts my sex drive. The person I'm involved with is aware of this; it’s not new information to them. We've talked about how my lack of desire isn't a reflection of my feelings for them, but they seemed to interpret it as me simply not wanting them, which is incorrect. I had hoped our conversation would help alleviate their emotional responses when sex doesn't occur, but unfortunately, that hasn't been the case. They still tend to withdraw or sulk if things don't go their way. Moreover, when we do have sex, it's usually because I initiate it. I feel like I have to take the lead every time, which makes me question my worth. If they truly desire me, why don’t they check if I'm in the mood and respond appropriately if I say yes? There's no foreplay unless I instigate it, which adds to my frustration. Additionally, there's this unspoken expectation that after we have sex, oral will follow within that day or the next. If that doesn’t happen, it triggers a return to a low mood for them. To be honest, it's all becoming overwhelming. I do so much for this person, often without being asked, just because I want to. It wasn’t always like this; at the beginning, we could go weeks without sex and things remained stable. If anyone else is experiencing similar struggles, I genuinely empathize with you.