Is this considered cheating?

Also she would constantly add other dudes and text them, she would send seductive photos to them too while we were dating and I let it happen.

I talked to her about these messages and she claimed I was insecure and jealous and then called me aggressive the way I went to her to talk to her about it, I tossed her phone in her lap with the conversation and then went to her room. She proceeded to get mad at me. All I wanted was an explanation and an apology but all she did was turn it on me that I was aggressive and she was saying I might hit her one day and she talked to her friends about and that’s what they were saying is that I would become that aggressive. Mind you I did everything for her, I had work at 4 am and she wasn’t in bed so I went outside and she was crying at 2 am about how she had to explain to a guy at work that she had a boyfriend, I would literally warn her that he wanted a relationship because she tried hiding me all the time. She also used apps like YUBO and claimed it was for friends but she had seductive images in her photos. Mind you she’s used these apps for dating and stuff before.

Honestly I’m so mad so expect some spelling mistakes She’s also talking to a bunch of people we both know that I was the reason we broke up, and I was controlling and a good guy but not a good bf. It actually makes me so fucking angry. We broke up last week but these messages are 2 months old.