<human>: So heres the deal,

Ever since I've gone off to college I've noticed a change in my mother and her attitude towards my father.  She seems constantly irritated with him, and no matter what he does she seems to react with total animosity.  (My dad can be a miser and a bit anal at times, but mostly everything he does he does to make the lives of my family better.)  It doesn't help that younger sister acts in the same way and only reenforces this behavior.

Anyway over the last couple years I've been witnessing this slow erosion in their relationship whenever I see them, and this year it seems to be at its worse.  This weekend was their anniversary and my father revealed to me that this was the second year in a row that she hadn't said a thing about it.

I've been debating talking to my mom about this behavior and have been trying to get my dad to communicate with her more, but now I'm starting to worry the damage may be beyond repair. Tonight when I got home (about midnight) I went to say goodnight to my mom who was in her study.  When I walked in she quickly tried to exit the screen of a video chat with a man I didn't recognize, who appeared to have his shirt off.  The screen minimized but stayed visible and I could only see the guy from shoulders up, but it definitely seem as though there was no shirt.  My mom then muted her computer and started rattling off the normal questions she asks when I get home. The whole thing just felt off.

Anyway I know I'm jumping to some conclusions here, but I cant fathom why a shirtless grown man would be talking to my mom at midnight.  I don't know if I should ask her about it or wait for more definitive evidence.  Or just continue to try and get the two of them to work out their problems.

My dad is still madly in love with her and if my suspicions are confirmed it would break him.

Thanks in advance reddit.

Can you give me the gist of the text in a nutshell?
<bot>: My parents relationship has been deteriorating over the last few years and I caught my mom skype with a man who appeared to be, at least, topless.