I met a man through a friend about a month ago. My friend is 4 years younger than me, and this guy was in school with her, so I knew his age. We’ve been on 10 dates already, and have planned our first night together tonight! However-he said something last night that made me realise that he thinks I’m younger than him. I’m 3 years and 5 months older. I don’t want to tell him-but should I? He’s never asked my age. I thought he already knew. AIBU to avoid the question?