<human>: Summarize the given text in a few sentences.

As the title says, two years ago my boyfriend got very emotionally involved with a girl he dated before me. They were having inappropriate conversations that were waaaaay over the line. It was the worst I have ever felt and completely devastated me. 

We kind of broke up for a couple of weeks and then I took him back. Slowly over the next year we normalized. Things are okay now. Or, until now. He was casually talking about a friend who got dumped, which led to talking about infidelity. These exact words came out of his mouth: "The only bad thing about emotional affairs are that they can lead to physical ones". Are you fucking kidding me. 

He still doesn't get it. He does not even fundamentally understand how what he did to me was awful. I didn't get into the discussion because we've had the discussion numerous times. I sighed but didn't really say anything because I was too focused on the fact that my heart had just been broken again. He kept talking and said, "you invaded my privacy!" WHAT THE ACTUAL FUCK. I knew that he was talking to her, I just had to prove it to myself to end the relationship. So yes, I read his texts and found exactly what I knew was there. I have not read them since then or before then. So apparently it's okay for him to talk to his ex about cuddling naked with her, but not okay for me to read the texts.

I don't know what to do. I just need advice and support because my instinct says it's over. He would be blindsided if I ended things because of what he said. It blows my mind that two years after the fact we are still talking about what happened.
<bot>: Boyfriend had an emotional affair 2 years ago. Today he invalidated everything he put me through by saying the only bad thing about emotional affairs are that they lead to physical ones.