How do I handle this?

My ex Gf decided to be lesbian and break up with me. We decided to be friends, the works. this had been probably the 10th time we broke up. (ik Its stupid). continuing, we decided to be friends, we got into a conversation about her self-esteem and she started to be a dick and I got mad and I started hitting her with facts and logic and she got madder and after a huge argument I said "maybe its a good thing we broke up, I cared too much and you cared too little" and she agreed which fucked with me and I decided to ghost her, she decided to screenshot our conversation and try to turn my friend against her but he basically laughed and brushed her off. again, I know this is kind of stupid and petty and I didn't really elaborate on what I said but this was the day before Valentine's Day we broke up and then we got into the fight a week later so I'm sorry for missing details plus I decided to keep some details to myself considering private life and all.