Phil does not care for Kat the same way he didn't care for Leanna. He only cares about they can DO for HIM. Come Sunday/Monday he will be negative as ever lamenting about how horrible and tough his life is.
Phil has nothing else going on in his life but Twitch/You Tube. He is not interesting nor romantic or selfless.
Narcissists like Phil cannot love. He has no genuine concept of it. Right now he is happy with her because she has no other life besides him, once she meets other folks at her new job and socializes with them, like Leanna she will be getting the fuck out of dodge soon enough.
Living with a toxic personality like Phil's it's only a matter of time before the partner gets the hell out and it's usually when the partner needs the narc the most.
Just like when Leanna had the anxiety attack and Phil was acting like a massive prick about it. She finally saw the light, then.
Kat clearly prefers living with Phil to whatever other hell scape she was living in but trust me, she's not a soulmate to him and he is not one to her either.
They are both using one another. Kat is using him for a place to stay and to get far away from whatever problems she had back east, and Phil is using her for a maid and a cook.
While I admit she is giving Phil sound advice, once she's been there a while, Phil will stop listening because, well, that's what Phil does.
He will always be alone.