K-1 visa

[Moebee]

I'm a us citizen I married a women in Pakistan . We did all the paper work and she got the visa ..I went and pick her up and brought her her with me to live in the United States. It's been only 3 months here in USA with her and we both agreed to get divorced. We are separated now waiting til the divorce is finalized but now I'm finding out I still have to support her because of Affidavit of Support. How do I get out that? Also i will not fill out the I-751 for her. What happens to her? Thanks Moe