I'm sorry. Is she on any medication or in therapy? Are you? Have you both tried this in the past? IDK.. and no judgment coming from me... no one being blamed. It just gets mighty lonely once you're used to being with someone for so long... I guess a man has a good chance of marrying again though. . . or at least finding someone to have fun with.
Peri menopause is temporary... though can be impossible at times, I'm sure. There is medication to help, even herbs. Somehow I don't think that this is the main problem.
It's up to you. Please take care of yourself during this trying time...and holidays. And also watch for her safety, as she may be overwhelmed also... if you can...
kv...