He can try to shift the blame how ever he wants, the bottom line is he did not want to be in this relationship, that is not your fault. And you also should not think that changing yourself some how could have saved this relationship in anyway.

I know it feels hollow now but its better that you know his true feelings, because I promise you feeling lonely while you are in a relationship is mountains more painful that feeling lonely while you are single. When you feel lonely in a relationship is tinged with hopelessness and worthlessness because you are contently questioning why the person you love doesn’t love you, while you are making moves to try to fix it, never knowing they already forgot about you.

Really, asking how to impress girls while you have a girlfriend is already super cringey and he asked Chatgpt? LOL, I hope you can laugh about this later. I’ll give you some great but slightly sexist advise that was given to me by a lady older than my grandmother at the time. “Never run after a man or a bus, there will be another along in 15 mins.”