DP says it's "perfectly fine for me to not want sex every night and is quite happy to cuddle" but seems to expect some kind of explanation as to why I don't want to have sex with him. If I just get into bed, cuddle up and fall asleep without explanation (this is very rare) he feels rejected and says it reminds him of his ex-wife. Sometimes I fall asleep quickly because I'm relaxed and really, really tired as am a single mum to 3 kids and am very physically active as don't drive so walk several miles a day. He comes over once the kids are in bed (and spends two weekends a month with me at my house), watches shite on tv then says "right bedtime!" about 2 hours later than when I go to bed normally so I'm already ready for sleep by then. I don't feel I should have to explain if I don't want sex. We do have sex most nights but if for whatever reason I don't fancy it because I'm tired, unwell, stressed or just not in the mood for no particular reason then he gets in a silent strop and starts stressing I'm like his EW if I don't explain why. AIBU to not want to explain every time?