Te boleteaste is a quintessential Venezuelan slang expression that means you publicly exposed yourself or made a fool of yourself.
It comes from the word boleta (ticket), carrying the idea of being publicly 'ticketed' or called out for doing something embarrassing. In the song, the singer accuses his ex, saying te boleteaste because she posted her new relationship all over social media, breaking their unwritten rule and making a scene for everyone to see.
This song is a hilarious take on the unwritten rules of a modern breakup. Rawayana isn't heartbroken; he's just annoyed that his ex doesn't know how to act on social media. They had a deal, an unspoken agreement: "Nadie necesita saber si tú estás con él / Yo también estoy cuadrando con otra mujer" (Nobody needs to know if you're with him / I'm also hooking up with another woman). The problem is, she broke the one sacred rule: "nadie publica al otro clavo en internet" (nobody posts the rebound on the internet).
He sees her Instagram stories and calls her out for faking how much fun she's having. The line "Tenías la tabla / Todos sabemos que en esa playa no hay olas" (You had the surfboard / We all know there are no waves on that beach) is a perfect, funny jab at her trying to look cool. It gets worse when she starts playing his music for her new guy. The situation has gotten so out of hand that his family is gossiping about it: "Hasta mi tía y la vecina saben del hombre" (Even my aunt and the neighbor know about the guy). All he wants is for her to chill out, so he just keeps begging, "Dame un break" (Give me a break).