LOL. Got me one of them, too. I worshipped my father in law, we got along great, and finally got to the point where I ceased giving a damn what my mother in law thought of me. When we go to his family's things, I do the perfunctory sit with the women for the least amount of time possible and then hang with my brother in laws and nephews. Guys either like you or they don't. There is no silly middle ground of pretending to like you one minute and then stabbing you in the back the next.
Sounds like my story. My father-in-law and I got along great; he thought I hung the moon. He passed away about four years into our marriage. At the holiday gatherings, I'm usually hiding in my nephew's bedroom listening to the latest music he's downloaded. (I'm the "cool" aunt.)
Mebbe we should start a support group. :-)