Been married to my wife for 20 years now. She has an exhusband whom she divorced before we ever met. They had 2 kids together who are now adults. Her exhusband got married to another woman about the same time we got married and for 20 years things have been friendly. Not that we hang out or anything, but we all 4 attend the kids functions. About 6 months ago the exhusbands wife came I'll and died shortly after. Now the exhusband is having medical problems. My wife's kid called a few weeks ago and was crying about her dad being sick and said he needed someone to take care of him. She asked my wife, her mother if she would take care of him because he is very important in her life. At first my wife said no, but her daughter can be very persuasive when she wants something. Although I objected, my wife agreed to check in on him a couple times a week. Well that wasn't good enough for her daughter and she wanted her to check on him every night. I strongly objected but it did no good. My wife started going over every night to check on him. Well last Wednesday he evidently had a bad night and asked my wife to spend the night. She said no, but he called their daughter and she demanded that her mother stay, so she did. It's been a week now and my wife has yet to come back home. She's still at her exhusbands house. At this point I'm starting to question if there is really anything wrong with him. I'm thinking they are probably f****** and just using this whole illness thing as an excuse. So I texted her today and told her I was going to file for divorce if she didn't come back home. Now it's my fault and I'm an a****** for wanting her exhusband to die. F*** that, I'm going to see my lawyer tomorrow.