AITA for not wanting to get back w/ my ex after I cheated?

Before I say anything my cheating wasn’t sleeping with another person, just talking and sending photos ik it’s still js as wrong.

Me (17f) and my ex boyfriend (18m) officially got together in July 2024, but have been off and on since November 2023. During the first half of our relationship we were in love and didn’t have any problems, then I had caught him watching p0rn. To some people this isn’t a big issue, but this was one of my number one boundaries in the relationship, he had told me that he had an addiction to watch videos in that region and cried to me & told me he never would again while begging me not to leave him. I told him that we could work through it but he would have to gain some trust back.

We had eventually got over it and worked it out until our relationship started feeling off. I had talked to my friend about it and I decided to go through his phone… in the middle of class. In his search history was searches after searches about videos, ai pictures, reddit links, etc. all based on sexual things that he searched. At first he tried to say he didn’t watch any videos and he only used the ai to “create a version” of me, but we had literal proof.

Throughout the last 6 months of us dating we did nothing but argue and not get along, during this time I started smoking a lot to feel happier with my life, he started doing the same. The only time we would get along would be when we were with other people and even then sometimes we still argued in front of others. During this stage I found out he was watching videos again, we would go weeks without any cuddling, being loving, even would eat meals without each other and fall asleep without saying good night. (We lived 2gether)

I found out that my old situationship that was off and on with me for 2 yrs had followed me on social media and tried communicating to me. Eventually I gave in and I texted him back, I knew it was wrong from the minute I did it but I felt wanted for by him, he said everything I wanted to hear and I thought he truly cared for me not like my bf.

We started texting while I was still with my boyfriend at the time and we eventually agreed to meet up. I was visiting my moms house so I went out with him and all we did was talk the entire time. About my interests and about what I truly wanted with my life and not what was expected of me. A couple days after we met we stopped talking because I came to my senses and realized it was wrong, but I still hid it away from my partner. A couple of weeks later he had went through my phone while I was sleeping and found the messages, he kicked me out at told me we were done.

A few days later we had met up and I had told him everything and apologized and told him how I felt. He completely ignored everything I said and told me he just wanted to get back together. The whole talk he kept trying to push over us being FWB and I told him I was not comfortable with that. He wants to get back 2gether, but i don’t want to and he won’t stop