Cheating Girlfriend Storytime (and my response)

One of my best friends got cheated on by her gf of 5 years. Paid for her trip to visit her "friends" in Europe only to get cheated on with some discord bitch (and the cheating started way before). She then planned to leave my friend stuck with their apartment lease and not pay her rent. She doesn't think my friend knows she cheated (she snooped thru her phone). She also body shames her to her new gf, oh and by the way -- the 27 year old cheated with an 18 year old. ANYWAY. I decided to be petty and made an Instagram account called "youreacheetah" with a cheetah profile pic and have spam requested to follow her for 2 weeks. She's been slowly having a meltdown because someone knows about her secret. She also writes cringy poetry and signs it as -A so I started sending PLL style messages. don't cheat on my friend bitch and pay ur fucking rent