I was just talking to an old friend and we got onto the subject of our sex lives. We're both in our 40s and both been married more than 15 years. She has 2 older kids, but my youngest is only 5. Didn't go into too many details in the conversation, but she was saying that it seemed strange that my partner and I don't have sex very often. Made me feel like my relationship is doomed! Am I missing something here? AIBU to think that she's the strange one?!