I think that you did the right thing. She now has time to consider ~ and maybe to re-assess her feelings about you.
As I said, once you got into this you would have to accept the reality of a girl who might want you ~ or who might choose someone else.
At the moment she is with someone else, so, of course that doesn't make you happy. Eventually she might choose you ~ or she may not. If she doesn't choose you, at least you will have tried & you can accept the truth and find the right girl for you.
Unrequited love is bitter sweet. Pining for someone who may or may not return your feelings, but who doesn't even know how you feel, is not helpful long-term.
Good luck.
