There's a guy at work. I recently found out that he's the son of one of my former co-workers, Geoff. I stopped him in the corridor and asked him whether he's indeed the son of Geoff. He said yes. I joked that he must look like his mom because he looks nothing like his father. He agreed. He asked me for my name. I said that I've worked in the building for a few months. The conversation petered out so I walked away saying goodbye.

A few days later, I guy from this guy's office asked me whether I liked the guy I was talking to - and whether I had a crush on him?

WTF - am I going mad?!!