So me (M 22) and my girlfriend ( F 20) have been dating for seven months now. We're at college and everything has been going fine, up until this semester. We had a lot of fights and some of them were caused because of my jealousy. 

She is pretty close with her coworker as they get along very well, and he has made it clear that he was interested in her before we started dating. Anyways fast forward to last night, I had a sneaking suspicion that something was up, and so I went through her texts. I know that they text each other because they are on the same staff, yet the last message sent was two days ago. Obviously she erased their previous conversation because they have been working together since August. I confronted her and she very calmly said she erases her messages sometimes. I let it go at the time because I guess I just wanted to be good with her, but now it is bothering me so much. 

Why just his thread? She has messages from last year and yet his thread was erased. Not sure on how I should approach this. I dropped it because I thought I was being irrational but I don't know. I also know it was wrong of me to go through her phone. She was upset but not too upset about that.
user
went through girlfriend's phone, found out she has messages with coworker, yet his thread was erased. Not sure what to do now.
assistant
So me (M 22) and my girlfriend ( F 20) have been dating for seven months now. We're at college and everything has been going fine, up until this semester. We had a lot of fights and some of them were caused because of my jealousy. 

She is pretty close with her coworker as they get along very well, and he has made it clear that he was interested in her before we started dating. Anyways fast forward to last night, I had a sneaking suspicion that something was up, and so I went through her texts. I know that they text each other because they are on the same staff, yet the last message sent was two days ago. Obviously she erased their previous conversation because they have been working together since August. I confronted her and she very calmly said she erases her messages sometimes. I let it go at the time because I guess I just wanted to be good with her, but now it is bothering me so much. 

Why just his thread? She has messages from last year and yet his thread was erased. Not sure on how I should approach this. I dropped it because I thought I was being irrational but I don't know. I also know it was wrong of me to go through her phone. She was upset but not too upset about that.
user
I went through my girlfriend's phone and found that she and her coworker have been messaging each other for the past few days. Why just his thread? She has messages from last year and yet his thread was erased.
assistant