Am I wrong ?!?!?!

Okay so my mother in law is throwing me a baby shower for her side of the family.... she made a vary big list (which I’m okay with cause my gifts of course lol) but I’m going through it and some of the girls I have never met before plus I was doing a little ig lurking and I noticed my boyfriend seems to heart them a lot when I first moved in in and before I moved in .... I asked him if he did anything with her and he acting suspicious. There’s a few what did I do am I wrong for being upset. I feel a little uncomfortable knowing my boyfriend thought they were attractive at some point and here I am fat 8 months pregnant......