... i found out he had a girlfriend. Recently i've been going through a transition and apologizing to a lot of people for my angry issue that i had. I wrote a few letters and i sent them out. One of the letters was for my ex apologizing for a lot of things. i dont love him and i dont wants to be friends or anything like that so i just messaged him to ask if it would be okay just to send the letter. His girlfriend ended up replying to me some really mean things and im not really sure what to do. my first instinct was to say some really nasty things to her, but i'm trying to be a better person. So i'm a little confused as to what i should do