Was this him being jealous?

I was talking to a guy that I have been getting closer with.. and I mentioned when I went to Europe to stay with my guy friend's family.. i said 'his family' and he goes 'he huh? hmmmm' so I said 'what's weird about him being a guy' and he said 'you stayed over with him... high five?" so I was like 'ehh lets not harp on the past.. but really, we are just friends in actuality no exciting tale' and he just went pshhhh I asked him what he was insinuating with the high five comments and he said 'nothhinnnnggg'