Will my girl friend come back?

We can not answer that without any information.

Where did she go?

I'd imagine once she gets home from her vacation she will be happy to come back home. Unless she broke up with you, then no

Ahhh... I see. You expect us to pull the Jedi mind trick here... well, my brain doesn't function this early in the morning, so your question cannot be answered. I will indeed come back here in mid afternoon to solve both yours' and the world's problems.

Until then, please meditate on this...