I was sorting out our internet the other day and my partner had been emailed by Plusnet, so she had given me her phone to use whilst I was using my phone to talk to the internet company. As I’m using the phone a message pops up from one of my partner’s ex boyfriends. In it he says he had woken thinking about what she had said. So stupidly I looked at what she had said and she had mentioned how it ‘felt good having him inside of her and having that skin to skin feeling with him’. I felt physically sick when I read that and I now don’t know what to do. I confronted her and she said it was a relationship she had 20 years ago, but he occasionally messages her still. She promised she never messages him first, but she tried to justify what she said by saying that she did have some nice times in her past as well as some bad ones.
What should I do?