Do you want to wait?
There's only 2 possibilities:
1) She will come back to you eventually
2) She won't come back
If the answer is 1, congrats to you.
If the answer is 2, will you regret that you have wasted your time
in waiting for her at the end of the day?
But, how long are you prepared to wait?
Only you, yourself can make the decision.
Cheers.