Just be the best lay she ever had.

True story.... my first long term girlfriend and I broke up. I ran into her and her friend at a bar one night. Friend starts talking shit, ex-girlfriend starts acting like a hype man, repeating whatever the friend said. Friend is like "you're an asshole," ex repeats "yeah, you're an asshole" and so on. This happens for about five or six insults. Finally the friend says something like "and you suck in bed." My ex stop, and says something like, "no, he's actually really good." Be so good, she can't talk shit even after a breakup. 😏