The Angel in my Closet

Here's the summary.

Tabitha Marrin moved to a small town in Michigan after her brother tried to kill her with a kitchen knife. As she is moving into her new bedroom she discovers an angel in her room. She thinks it's creepy at first and then gets used to the idea, but when angels come for him she must choose to fight for his life or to let them kill him. Will true love win in the end? And can she keep her life from her brother and father who've been tracking her from step 1, waiting for her to use her powers?