<human>: My ex who is extremely popular, tweeted about "how much of a piece of shit i am". well I want to respond accordingly, probably not directly to her since i blocked her on everything after we broke up because she's crazy (but that's a long story), how can i post something that wittingly demeans her and makes her seem immature without coming off as talking poopoo and being an asshole. I want everyone to know she is being immature and that my feelings really are hurt.

A little background info: i'm 20 and she is 20, I took her virginity, She had no reason not to trust me. She was always too busy with work and school and we would see each other max 3 times a week. she never would trust me but i did everything for this girl. I stopped smoking weed, got a better job, stopped hanging out with friends who are bad influences, basically did everything but bend over backwards for her and she still had trust issues which was just exhausting for me. when she found out i wasn't a christian she dumped me. well i picked up smoking weed again but not cigarettes. and she thinks i was doing it behind her back along with other stuff all along and made a tweet to defame me. Give me your best ways to retaliate without coming off mean but to also put her down and make her seem like a shitty person but gracefully.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: Ex tweeted a defamating tweet about me and I would like to respond accordingly and wittily to defame her but by doing it gracefully.