Ah, I am so sad to read this. The thing is, we are not always in “the mood”. But we need to consciously prioritize sex and some level of intimacy in the couple; otherwise, it can generate lots of resentment and conflict. It’s not worth it. That’s why, even if I am not in the mood, and I know it’s been a while, I initiate. It’s mostly respect for the other person, I would say. Sex is a physiological need, among others.