AITA for going no contact with my dad until he gets the help he needs?
I 40 female have gone no contact with my 65 dad for a year now. Last year, I got an email from this 50 female saying that my dad had lied for several months to her about a shit ton of things, like his work and family. She sent me an email with what he has told her, which is pretty crazy stuff. So I went on a stealth mission to my dad's apartment while he was asleep and linked my phone to his email to I could also check it from my phone without him knowing. I searched his emails in trash and not in trash and finding every single thing he wrote to her plus things he wrote to other people that 2 of which were supposedly sent by me through dad's email to this other person, which of course I never wrote. Anyways, so I found the emails exchanged between this women and my dad and he had lied to her soooo much and so elaborate that I was shocked! He told her in one email that I was not his biological daughter (which I am his bio daughter by the way.) That my mom had died from an std (she is alive by the way) and to not to tell me that I'm not his bio daughter......he also at one point, sat me down all serious and told me with a straight face that with his health which is crappy that his doctor only gave him 2 years left to live which was devastating at the time UNTIL I went to a doctor's appointment with him and asked his doctor if he said that, which the doctor replied that he did not say that! My dad also told me that he was being admitted to this long-term covid clinic in California. So I dropped him off at the airport and picked him up, both times in 3 months. This was before I knew all about the lying. Apparently! Those trips were in fact not to California but to Arizona to meet the 50 y/o women that later sends me the email. There was soooo much more that happened, which really fucked with my mental health, that I sat down with him and talked about how I know what has happened and that he needs to talk to a therapist and that I am going to step back for my mental health until he also gets help. Side note, he only ever reaches out to me when he needs something or it's a holiday or birthday....never just to talk about how I'm doing and that's it. So, AITA?