Peeta had been having nightmares frequently after the games, not as bad as Katniss’s, but pretty bad. He had the same reoccurring one for a few days straight, one of this person that he’d never met before. The person was polluting his mind, and he decided to paint (which he often does of his nightmares). He’s painting on the porch and Katniss is sitting next to him, watching him coat the canvas.