What the F---!!???!!??

SO, I'm a LITTLE purturbed. A family member of mine got married a few months back and his wife has done very rude things to people in our family (including mostly me). She's transformed him into a completely different person and it doesn't seem to be for the better. Although I have been struggling to get to know her, the more experiences our family has with her, the more I want to run and find him a new wife. It's not fair of me to say who he should love, but shouldn't family love each other?

Today my dad drove from Elko, NV to Salt Lake City. He had forgotten his key to my sisters house and called this family member of mine. He asked if he could come borrow his key. He said that he could come get it, but that at 7pm friends were coming over for Her birthday party and that he'd have to leave. I was a little taken back. ESPECIALLY SINCE MY PARENTS BOUGHT THIS GIRL A $200 NORTH FACE JACKET FOR HER BIRTHDAY!! It's always kinda been a rule in our family to invite family member to functions even if they can't attend...in fact I must admit that most people are like that. However this girl has transformed my brother into a social retard. I must admit I was super ticked off when I heard this. Especially since I had just called this girl to wish her a happy birthday and was putting something in the mail for her. More than anything, I am hurt. I am hurt that my father isn't allowed to be a part of a celebration, when he is clearly family!!!!! WHAT THE HELL HAS HAPPENED TO THIS GENERATION OF KIDS!?!?!??!?!? (because that's what they are, KIDS!) I know my parents didn't raise that family member to act this way. I'm shocked. I'm disguisted. I'm pissed. Be mean to me (since she already has), be inconsiderate to my sister (once again, already has), but what the F%@&????!!!!??? An old man wanting to be a part of your life?! That's screwed up. I've tried. We've all tried. What the hell are we all suppose to do when she doesn't try. What would you do?! Need advice......