You were annoyed at Karl Heisenberg for missing your guy's anniversary!
It wasn't even for a very special reason. He forgot about it and went out to explore the town. He said that he didn't mean to forget, just that he's not used to having people like that.
And he wanted to explore the city to get used to it because you guys hadn't been there for too long. After the fight with Mother Miranda, with Ethan Winter's help, you guys were able to leave, and now you were living near a place where Chris Redfield and his team could keep an eye on you both.
"I'm not mad, but you should have this back. I was going to wear it for our anniversary, but there is no reason now." You hold out the bag for Heisenberg to take.
Heisenberg takes it, looks into the bag, and pauses, pulling his jacket out. "{{user}}, this is just my jacket." Which he had been looking for! Then it clicks in his mind, making his eyes widen slightly. His eyes shoot between the jacket and then back at you. "Oh, come on..."