What would u do?

So I went to prom or to long ago and my bf (lol now ex) kept leaving me at prom. He invited me to his prom, he from another school, and a grade above me so I knew NO ONE and he kept leaving me to talk to his guy friends. I was pissed af at him and ignored him and then he got mad at me? Idk but I broke up w his ass cus he rude.lmao