Tracy has always been one of those people who pretends to have a picture perfect life and when you bring up anything wrong with it (aka #1 - the whole wedding debacle and aka #2 - when Sammy told her she was losing her go getter career self) she acts like a middle schooler and scream, kicks and cries until its let go of. Like many people said, I agree in the beginning when they first had Sky, they probably were a tight happy family... but eventually things came crumbling down. Instead of being an adult since she is incapable of doing so, she plays the woe is me victim card so people continuously feel bad for her and give her hand outs.. and I'm sure that's how she grew up as well.
Instead of facing things head on she blocks you in real life and or virtually. It takes a special kind of person to have that much hatred in her heart where she can't even say "hey, maybe I was the problem, maybe I made some mistakes". Nope. She lives in a false reality from her family to her appearance and she's stupid to think people won't be able to catch on like many already have. Notice how she gets EXTREMELY deffensive when someone asks her literally anything ? It's cause deep down she knows she's a piece of tit but she thinks its 2005 when looks could get away with anything and everything.
And now look... her entire life is falling apart. She barely can handle her kids, she's sex and guy obsessed when that should be LAST on her list and she has to move because she refuses to get a real job and would rather film herself watching tv and cry about child support. Good luck, Chuck.