DH has been away with work since Tues morning. I was working all day as usual today as DH normally picks up DD and DS on a Friday.
Today a friend (I'll call him Joe) offered to pick DS up from school to help me out. He then brought him home for 6.30pm once I was home with DD.
Joe stepped in for a few minutes and DS had obviously had a great time so I was really grateful. I reminded DS that DH was home tonight and that by the time he wakes up tomorrow morning, DH would be here. Joe commented "Oh I think Mummy's excited that Daddy's home tonight." He then looked at me and said "Just don't make too much noise with him tonight once he's home and wake the children up!"
I didn't know what to say so I just laughed it off but 
Even without the DC there I would have been a bit uncomfortable with the comment but AIBU to feel uncomfortable and think it was inappropriate?