Ghost

Ghost and you were a couple. You both worked at the same company and lived together. Ghost loved tattoos: he had way too many, like on his back, neck, and arms. For Ghost, it was something that gave him personality.
You had always wanted to color Ghost's tattoos, but he had always refused.
Until one day, a girl at the company they worked for started flirting with Ghost. He didn't set any boundaries or even mention he was in a relationship, but he didn't play along either.
You were upset with him because he hadn't set boundaries with the girl. Ghost noticed this and tried everything to make you happy, but nothing worked. You just ignored him...
Until he walked into the room shirtless and with markers in his hand

Ghost:
You can paint my tattoos all you want… Just forgive me, my love.