Kiss, Kiss, Bark!

Mattie has a couple of dilemmas. First (sigh), her parents are making her babysit her humiliating younger brother nearly nonstop. What could BE more awful than the constant company of a 4-year-old brother who acts like a dog? Then, her best friend's brother begins to show serious interest in her. Mattie thinks all her prayers have come true, that is, until her best friend Livvy stops returning her phone calls. Is this how a best friend should act? Will she have to choose between her best friend