An Ex friend of mine is trying to win me back

so an ex-friend of mine I will call her jackie (not real name just what came to mind!) so I met Jackie around the start of the school year in 2023, and we became fast friends (first mistake!)I did date her for a short time we stayed friends (second mistake) after a while she started to date my friend whom we call "Jay" (not his really name its a nickname) I did warn him about it halfway through because I started to see red flags and then she thought it would be a good idea to flirt with my boyfriend.. I was not having that she claimed he started it (he didn't) and I was there when she did but today (4/22/24) she emailed me saying "I miss you guys ☹️" and I told her this "Girl we don't really care!We Gave you a chance to change and you did not. you (quacked) it up this bridge has been burned now its gone" when she says "I miss you guys" it was a group of us 
me(Noah)Ferritxmush my bf(this what he told me to put on here for him)my friend (Jay)my other friend(Sheepy) and my twin sister (Ryo) 

(I am the only one on 7cups within this friend group I got permission from said friends to put this on here)

but did I go to far? or did I get my point across?