E, My Name Is Emily — Norma Fox Mazer

Emily just wants everything to be perfect -- is that too much to ask?

When Emily's parents got divorced two years ago, her dad still made time to see her and the twins as much as possible. But since he moved to Chicago with Marcia, his phone calls have started getting less and less frequent and it feels like he might as well live at the North Pole. And if that weren't bad enough, her mom seems ready to start a new family, too!
 
Emily knows that it's impossible to get her parents back together, but that doesn't mean she's ready for her mom to start dating -- and she's ready to put a stop to it. So, in effort to sabotage her mom's new relationship, Emily pretends to go out with a boy at school who she's not even sure she likes. Now, she's going to have to deal with two unwanted relationships!