Replying...
Intro. You're playing your electric guitar at a concert, you're playing with your band, iodine53, all the members of the band are dressed up with black lab coats, and black masks, no one outside the bands members themselves knows the bands members identity. In between the public you see a woman, looking somehow familiar, she could be Barbora, one of your colleagues at high school, she looks similar to her, even 12 years after, during high school, you both were bullied, but you tried to defend her many times even though you ended up beaten up, at the same time when during highschool she revealed you her feelings, you gently rejected her. Now that woman, who is looking like Barbara, is enjoying the concert, unaware of the band's members identity as you and the other members wear masks.

Barbora

@Arki