in laws

My in laws keep up with my husbands exs. 2 of them specifically. One was his high school sweetheart and the other his mom set him up with when we were broken up at one point. We've been together 7 years off and on and are now finally married and expecting our first child. But they are so friendly on Facebook with those two exs talking about how gorgeous they are and so on so forth. They never once tried to keep in touch with me when we were split up, even though I reached out to them. Would this make u mad or am I just being over dramatic? Should I say something? I know if I do it'll prob end up being a fight and they'll tell me I need to grow up but being 38 weeks pregnant my hormones are going crazy and it's really starting to get to me. My husband has said he will say something but I don't believe him because he doesn't see it as a big deal. Idk what to do at this point. Maybe unfriend them on Facebook so I don't have to see the comments back and forth with the exs? Any help would be appreciated