My husband went to a work conference at a beach resort in Mexico (yes it's real, I checked). He is usually very good at contacting me but for two nights in a row I didn't hear from him after 9pm. He added a few more contacts of people he met in the industry at this conference on Instagram, but one doesn't 'check out.' It's a niche industry so pretty easy to cross check people. This one is a female who shows no common contacts, and isn't in the industry (her career is in her profile and it's not remotely close to what he does).
Yes, years ago we had an issue with infidelity, hence my hyper vigilance. I want to ask him about this woman tonight when he gets home, but don't know how strong I should come at it, if that makes sense. Just ask? Ask to see phone messages? Leave it?