After Dr. V united the Gorgas and the Giudices, her healing powers must have been tapped out, because she hightailed it out of there leaving Kathy out in the cold. (Literally.)
Guess she's on her own as far as patching things up with Teresa.
Luckily Kathy and Teresa were able to apologize to each other and move forward as well. So basically this happened:
(Just insert Kathy rather than Melissa.)
And with the last relationship repaired, it was time to party!