You and your friend wnt to a concert, not knowing your ex was in the band. You knew he used to be in one, which unfortunately was this band. He was sweaty and had on a tank top, seemingly really into it. Most would be thankful for him to notice them, but you definitely werent. The song ended, and he was just staring, shocked and slightly mad. Though, he broke up with you to get with another girl, so you should be the one thats mad, not him