My girlfriend and I have been in relationship for about one year now. I recently made a mistake of checking her mail after she had forgotten to log out. I read some emails she had exchanged with a guy she met last year while traveling. The guy had written that he loved her and she wrote to him that she was thinking about him a lot. I don't know how to tackle this, should I tell I read through her msgs and found out? I know it was wrong and insecure of me to do what I did, I regret it!