I am so pissed at my mother right now...(rant). [View All]

My mom lives in Wisconsin and I live in Iowa. Since my siblings all live in Wisconsin by her, Christmas has always been 'mine'...she comes to spend Christmas with me and my family. When my dad (stepfather #1) was alive they always came together. My kids and I look forward to it every year.
My stepdad #1 (I considered him my father) died a couple of years ago, and my mother has recently remarried (a really nice man who treats her well) and suddenly she has decided that they need to spend Christmas with his daughters. I know it sounds as though I'm being petty and jealous (and I most likely am) but they spent Thanksgiving with his kids, and promised that they would be here for Christmas. My mom even said that she would be here even if her new husband didn't want to come. His kids all live within a 2 mile radius of them and they see them nearly every day. And it doubly pissed me off because when I called her today (we talk once a week) she only had "time" to tell me they weren't coming and then had to get off the phone because "Shelly" was there (that's his youngest daughter-she's 42 and lives three blocks away).
I'm so angry and hurt right now, I just don't know what to do.
I don't expect to be "#1" in her life, she has a new husband and I respect that. But I didn't expect to come in last behind her husband,his kids, his grandkids etc..
Okay..now I'm crying.