My wife and I have been married for 2 years and together for 4. Prior to dating me she was with her high school boyfriend for 8 years. He broke up with her and she was devastated at the time.

I knew she still had feelings for him when we started dating but thought that those would fade over time. 4 years later they still haven’t and I don’t know what to do.

She cried when he got married to someone else and when they got pregnant. I catch her looking at his facebook and instagram pages. They don’t talk but if he ever reached out I’m sure she wouldn’t ignore him.

A few months ago I threatened to leave and she broke down and begged me not to. She knows this is a problem for her and promises she will eventually forget him but it’s been 4 damn years. I just don’t know if I should pull the plug or not. Any advice?