Colleague at work recently got quite chatty with me over work stuff and then quickly moved to personal lives (we don't work closely but have some connection). He knows I'm going through a divorce and he has a gf. He has a v dry sense of humour and often jibes / makes jokey insults, like telling me I won't be single forever cos men can be desperate and have low standards (I'm a single mum - I know that sounds awful but he's actually a really nice person, it's a definite joke). He has a gf and does openy talk about her but I sense he's flirting with me. Like saying I'll definitely get married again and would I have any more kids etc. He also joked about me being in my mid 30s (he's two years younger) and that means I'll be all about the beige undies and until I prove otherwise he firmly believes that what I'm sporting. I think the undies chat crossed a line but do you think he is flirting with me or just general jokes? For info I don't respond to the undies chat other than laugh it off and say yeah I'm Bridget Jones what can I say haha...aarggh why do unavailable men do this! Unless I am reading too much into it and it's just all jokes?