The last few days has shown a huge change in the cats' behavior. Patches is no longer the cowering Pariah Cat in the kitchen, but instead goes about the house as he pleases, eats out of Jack's bowl, and chases Jack away as much as Jack ever did to him. For every few moments that the cat interaction seems like playfulness, not real fighting, there's one where an innocent sniff will lead to a battle over who's Top Cat, but overall, there seems to be a lot more of an even relationship between them.