Why do they have to act this way?

At breakfast this morning FSD was being her true self and was trying to cause issues. She was trying to pick fights with my BD over stupid things like an easter basket. I stepped in and stoppped the situation so she then proceeds to try and get my BD in trouble. When that doesn't work she proceeds to tell FDH right in front on my BD, FSS, and me about how she wishes that he was still married to the crazo, the ex. FDH told her to quite being mean and that was he was never going to marry her and I told her to turn around in her seat and eat her breakfast. She then proceeds to ignore me and kept trying to engage FDH so I repeated myself. Her response was, "I'm talking to my dad."
Of course this p!ssed FDH and myself off so she is losing something this week. I haven't quite figured out what she has lost as of yet.

Then when we left I couldn't get the stupid garage door to close so I called FDH and he said he would come home and take a look at it. After that we were driving to school and my BD asked if they were going to be late for school and I told her no. Of course then FSD has to chime in with my mom has never dropped me off late for school but you did one time. This was the straw that broke the camels back. I told her that I have never dropped her off late. That I always drop them off before the buses even arrive and that according to her teacher she has three tardies that have happened on her mother's week.

I can't handle this child sometimes. She's just a mean little kid. Monday night both kids wanted to go back to their mother's, (they use this as a way to make FDH feel guilty and give them more attention) so FDH, being fed up this, drove them over there. Before they left FSS and FSD kept asking if FDH was crying, which he wasn't, and FDH wouldn't respond to them. So FSD's response to FSS was and I quote, "He's crying inside." WTF!! What 7 year says this.

Thanks for listening to me vent guys and gals.