My roommate is moving out

She told me that she gave notice at her job and will move back to Germany around Mid May. I'm don't quite know how to feel about this. On one hand, it was inevitable. She has a boyfriend in Germany and they saw each other only about every 3 or 4 weeks. And there are certain habits of hers I won't miss, when she moves out. On the other hand, I've gotten really used to her, I like her and we've settled into this routine. And now I have to find a new roommate. Last time was a pain. Bleh!