My boyfriend was speaking to her months after the relationship ended, she was in a new relationship but kept him their for emotional support. She was suffering from mental health issues and self harmed so I understood why. Also they were long distance, and he showed me all the conversations, which were mostly just chit chat.
Until they weren't... one day she messaged a lengthy text saying she still had feelings for him and thought about him every day. I was very upset as she knew he was with me. He told her he was happy with me (short version) and that was that.
About a month later she sent him a picture of a love letter she wrote to him several years ago, it actually said 'I love you 'name'.
I said that it was very inappropriate so he asked her why she sent it, she said well I can hardly send it to my boyfriend and it was for nostalgia. I said that's bull, she still has feelings and asked that he cut contact.
I feel the line is crossed when an ex expresses that they still have those feelings, then it's no longer friendly conversation.
What are your stories/experiences?

Most Helpful Opinions