Starstruck (Starstruck Saga, Band 1)

After an incident with a hot-air balloon causes college-dropout Sally Webber to lose her job, she sets off to find direction in her life. Crashing into a teleporting alien, however, is not on her to-do list.
Now she's on the run from TV-drama-loving aliens, and things are just getting started. Zander won't stop reeling her into life-or-death situations to save her planet, as he waits for his laser-wielding sister to search the universe for him. Though Sally isn't quite sure if he wants to save Earth from annihilation, or just quell his curiosity of all things human.
Now she's got to find lost alien emissaries, as well as a job, and stop the planet from getting incinerated in the process. But with Zander as her roommate, what could possibly go wrong?