3 weeks ago, my then girlfriend and I were sharing videos between one another like we normally did while lying in bed together. When she was showing me one of hers, a message from a person I did not recognize popped up. The message said "Would it be crazy right now if I showed you my dick? lol" obviously that's a bit concerning, considering how fast she pulled the phone away I kind of had a suspicion that something was up. She responded back "LOL i'm ded" and didn't shoot the guy down which really pissed me off. I asked her who he is, and she said it was a coworker of hers that she started with, they bonded together and share what's going on at work to lean on one another. I didn't like that, so i set a boundary and told her that I didn't want her to interact with him any longer on a personal level, and to keep it only business professional at work. She called me controlling, I told her that I am allowed to have boundaries and what he said was crossing a line. She disagreed, said he's a great guy who's MARRIED, and has a 1-year-old child. My girlfriend and him grab lunch every Sunday together. After all of this I just needed to collect myself as this all was new info to me, and it really upset me.

After hearing what she had to say, and how this hadn't occurred in our 2-year relationship before, I decided to give her the benefit of the doubt. Our anniversary was coming up on the 18th, so I wanted to fulfill what plans I had made for us. So, we had a spa day, I got her a game she wanted, and I took her out to dinner. After working a 12-hour shift the 17th leading into the 18th overnight, I went to the store and got her a card, flowers, her favorite chocolate, wrote something sentimental in the card and was just trying to do what I have always done for her. The day after our anniversary, her entire demeanor towards me changed out of nowhere. I asked her if something was wrong, and she said she really didn't appreciate the boundary I had set with her. I told her I was not budging on this, to which she screamed in my face over and stormed off to go for a drive. I have been in abusive relationships in the past, so this really shook me up as she has never done something like that before. I gave her some space, but she didn't talk to me for 3 days, and even then, we didn't talk a whole lot. Something did not feel right. I asked her if something was going on outside of our relationship, and she denied anything and told me i needed to trust her.

The next day as I was getting ready to head out the door to go to work, she sat me down and told me that she was breaking up with me. I kind of saw this coming but it was a total mind fuck at the same time. She said she didn't want to be controlled, and she wanted to have freedom to have any friends she wanted as she felt like she couldn't with me with how I behaved towards her coworker. I didn't argue. I told her I need a month to put back some $$$, so we have split our apartment in two. I'm sleeping in the den, she is sleeping in our bedroom. We haven't talked, she seems content, and I'm moving back out west at the end of May so I am just focusing on that and I'll grieve in silence when I have a moment to breathe.

AITAH?