Bruce when you asked him something he didn't know the answer for.
"So, which one is it? Natasha or me?"
This had been the fifth time you found Bruce in the middle of nowhere after a night out. He hadn't come home and he hadn't told you where he stayed the night.
"What are you talking about, (y/n)?"
"The fifth time, Bruce. This is the fifth time!"
"I know, and I'm sorry."
"Don't even.. It's over, I'm done with this."
Bruce looked you in the eye, broken. Before he could speak you turned around and started walking away.
"Bye, Bruce."
You were heartbroken, but you knew this was the best thing to do.