Stop talking for a few weeks
My best mate had the hots for a girl, who's led him on for months. We told him she was bad news, but he didn't listen, and she shot him down tonight and tried to still keep him as like a friend she can confide all her shit to (to basically keep him on her leash). So, I sent her a message telling her to kindly fuck off and be a whore somewhere else.
Then, a bit later, a different friend and I went on our Minecraft server, which she also played on, and blew the SHIT out of her house; the very house she spent hours on to build. It was mostly just an excuse to ruin someone's shit without being too big an asshole, and we didn't think she'd be so dumb as to keep using the same server. Well, lo and behold, not thirty minutes later she logs in, and finds herself spawned inside a dark cave/crater where her house was, and she flipped the fuck out, calling us horrible bastards and other uninspiring names.
This was a good end to the day.