So you feel that he sees you as a check-off mark on his to-do list, it that about right?
"Oops, didn't talk to Maria yesterday. Here, I will call her for 90 seconds, sound happy, make a joke or something, apologize--check. Now i am good to go for the day..." That must stink, actually I know from experience that it feels pretty awful...
Sorry sis. Want to come to Disney with me? I could kick H out of the trip and put you in, and add your kids?? Our resort is Carribbean Pirate-themed!