Help thinking of a title for this story?

Okay, so the main character is named Gabby. She's 17, and she's a Guardian Angel. Her charge is Jace. Humans aren't supposed to be able to see the Guardians, but Jace can see Gabby. It makes Gabby's job a lot harder, because she also has to deal with her feelings for him (which are against her laws as an angel). They end up falling in love, and in the end, Jace is almost killed because Gabby was distracted at the time, and she feels guilty about it, and almost leaves because she doesn't think she's fit to protect him, and she wants him to be safe even if it means they can't be together.