I caught my boyfriend checking out other girls

I just caught him checking out some girl on Facebook. I mentioned that I noticed and he made an excuse.

First he said "yeah I am".

Then I said "oh okay. After I make our tea's I'll check guys out on Facebook too"

Then he says "oh it's just a friend of mine her dad died and I feel sorry for her years ago"

I ignored it. I'm going to make sure he catches me checking some guy out and I'm going to say "oh he's my friend his dad died and I feel sorry for him years ago".