Is my husband planning to cheat when goes out of town?

My husbands cousin is getting is getting married next week on the west coast. We live on the east coast. The wedding is on a Friday and I can’t get the time off work so I’m staying home with our four children while he goes. I was totally fine with this, he’s going to be there for about 4 days. He used to live on the west coast but not in that state, it was the next state over. He grew up and went to high school there. His cousins wedding is small and it’s all primarily family, definitely no one he’s friends with.

Today I went on my laptop and went to search someone on Facebook and realized it was logged into my husbands Facebook. I realized that he has just searched his three ex girlfriends who all live out there. I got curious and went into his activity log and realized he searched their names over 8 times each just yesterday alone. I checked his messages and he didn’t message any of them but is this a red flag that he’s going to try meet up with them while he’s there? He hasn’t mentioned it at all to me but I obviously know they’re his exes because we’ve talked about it before. Now I’m super nervous that I’m going to be sitting at home with our four children looking dumb while my husband of 10 years is on the opposite coast trying to fit in time to see his exes while he’s there. What’s weird is he didn’t search any of his old guy friends he knows from over there just all girls which is making me really uneasy. Am I overreacting here or is this sus? I’m going to ask him of course but an outside perspective is sometimes helpful in these situations.