What would be a good title for my alien love story?

I need a title for the alien love story I'm writing. Its about a girl named Jacy who studies the sky and stars and finds a UFO and wants to go public with it. The aliens realize it and want her dead. So they send a human Erik who's mind is controlled by an alien to kill her. But the more he watches her he doesn't know if he can kill her. But when the aliens found out they wanted to kill both Jacy and Erik. They go on the run and be mOre in love while there running. :) lol Im sorry it's a little long hehe but Please help with a title it would be nice ^.^