It's ok. As long as she was not given a 5 year penalty when she left the U.S., there are two ways for you to bring her back:
1) The K-3 spouse visa takes 6 to 9 months, you must be married. The I-129F will cost $340 and $350 for the visa processing fee. Then after she enters the U.S., she must still file the I-485 for $1070 and wait for the marriage interview about 5 to 7 months later.
2) The CR-1 visa (or IR-1 if your marriage is more than 2 years old) takes about 1 year or so. You must be married. The fees are $420 for the I-130, $330 for the visa processing fee, $88 for an Affidavit of Support fee. But once she enters the U.S., she enters as a Resident and she does not have to file (or pay for) an I-485 nor does she have to attend an additional interview. She just gets her green card in the mail a few weeks later.
So the K-3 is faster but generally more expensive. The CR-1 (and IR-1) are slower, but generally cheaper. And no, there is no middle-visa that she can use to enter the U.S. while that process is pending. She will most likely have to wait outside.
Here is a link to those visas:
and another link:
If they did give her a 5 year penalty and the 5 years have not passed, then you will also have to file an I-601 and prove that if she is not granted the immigrant visa to come back to the U.S., you would suffer extreme hardship. Here is a link:
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