<human>: Hi, I am a 20 year old guy and my gf is 21. We are both in college and have been going out from the past 1.5 years. She had a previous relationship in high school which ended because the guy left the country. 

But over the course of the relationship, the guy in Korea has been trying to talk with my gf. Honestly it didn't irk me at all because I understand they had something special once and if they want to be friends, so be it. But the ex keeps sending her personal messages like "you were the best girl friend I ever had" and "I want to see you again". I didn't know about it for close to 8 months into the relationship until she told me. I told her I wasn't comfortable with what he was saying and so she told him that she wont talk to him anymore. I asked her to be honest about it with me if he does end up talking to her again. But I found out from her facebook (I was handing her cellphone to her due to an update and I saw his name had send her a message) again I trusted her and I let it be. But my curiosity got the best of me and I saw in her fb today that they had talked as latest as March 2012. It was the same type of fb messages from him and my gf telling him that she doesn't want to talk about that stuff on fb. I don't know if I should just let it be or if I should talk to her about it. I love her but I am also not addicted to this relationship by any means, if that makes any sense. I would appreciate any advice on a good course of action.

Can you provide a brief overview of the text?
<bot>: gf's ex messaging her extemely personal messages, I asked if she could stop talking to him, she agreed she wont, but she continued to behind my back for almost a year