What should I do when my girlfriend and I check in at the hotel and see my mother checking in with someone else?

Whether your mother is single or widowed, if she is, you have no right or reason to stop her. If you are still curious, wait a minute. Since your mother has seen it, I think she will tell you when she can.

If not, (this is really a fatal problem), I can only tell you what I did. My girlfriend and I will definitely not get a room that night, because the man opposite my temper will probably die in the house, and things will definitely make a big deal. I have no tolerance and protection for my parents' marriage, because since it is their marriage, it is they who need to decide, and my responsibility is to make cheaters pay the price. I can't do it to my mother, but I can do it to that man. I insist that I have the responsibility to protect my parents' love, but I can't give up because I'm worried that my father will have an accident when he knows. ) I'll inform my dad as soon as I'm sure, and the follow-up treatment has nothing to do with me.