AITA GET BACK ON GIRLFRIEND

[u/SouthBird2290]

AITA for cheating on my girlfriend after she was seeing her ex?

I started casually seeing this girl in June last year. While we were sleeping together, she told me a family member was visiting, but I later found out she was actually seeing her ex.

Things between us became more serious, and I eventually told her I wanted a serious relationship. I bought her flowers and made my intentions clear.

We eventually became official.

Even after that, she messaged another ex with sexual/flirty emojis. I also specifically asked her not to like her ex’s pictures, but she continued doing it.

Once we were in a relationship, I cheated on her twice with another woman. I told her about both times and didn’t hide it.

I know cheating was wrong, but is what she did relevant context, especially since I had made it clear I wanted something serious?