I’m a man. Just to be straight up from the beginning… 2 years ago mg wife who I loved beyond all things .. decided that she was unfulfilled in her life and needed to go and seek pastures new.. she is a New Zealander and had some opportunities there .. so she left and I have her my blessing as we don’t live in each others pockets .. so she was away for a year .. intermittent communication on WhatsApp.. but our (step) daughter went to visit and came back to say she is living with a guy… (Isay ‘step’ as I have bought her up since e 18months as my wife was the high earner) .. During this time I have leant on her best friend a lot .. she is a really kind and empathetic human .. has always been there for me but has NEVER given me any indication of anything more .. her husband is a chronic alcoholic with alcoholic dementia .. and she has been beyond caring for him .. Last December I had to go to another country on family business. My wife’s best friend (let’s call her Sophie) took me to the station so I could get to Heathrow.. as I got out the car I took my heart in my hands and said. ‘I don’t want to go’ .. she asked why . So I told her that I would miss her too much.. and so it began .. she met me in the other country . On the day we met we both told my wife what had happened. Her husband would have no understanding so he doesn’t need to know as will only cause upset .. my wife is currently in Croatia with her boyfriend.. and we have initiated divorce proceedings… however she has changed the narrative to ‘my best friend has run off with my husband’ … AIBU to say none of this would have happened if she had t shacked up with her boyfriend.. ?