QUOTE
Don't cry because it ended, smile because it happened.
My suggestion would be to move on.
This girl is not worth it.
Move into another room like you mentioned and hang out with your other friends for a while.
A little distance is good.
Clear the air between the two of you.
Then, if she wants to start hanging out with you again, she'll come back to you.
And remember, don't let anyone get to you so much that you would do anything like hurting yourself.
I hope my advice helped!