What can I do?I delayed, now my girl is dancing with another man?

Answer 1

She SHOULD dance with other men. You should also dance with others. If she learns about different men and then chooses you that is an honour.   Then you really might be "the one".  If you keep her as a possession then sooner or later she will be forced to move on.  Your choice.

Answer 2

If you really love her. Only graceful persistence will prevail. If your what she's looking for, she'll find you. Woman are like books, never judge them by the cover.

Answer 3

Let your love be free, if it comes back, its yours, if not, it never was.  Find another pal.

Answer 4

Find another girl, and don't delay this time.