All Perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger. We ask Allaah to exalt his mention as that of his family and all his companions.
If you meant by your statement: "I come willing to marry.", that you wanted to marry right then, then marriage took place, and in this case, if you want to separate from her, you are obliged to divorce her. However, if you meant by your statement: "I come willing to marry.", to do so in the future and not right then, then marriage did not take place; so there is no need for divorce because the marriage contract did not take place unless you said to her guardian "I accept to marry her." after he said: "We agree and we marry her off to you."
Finally, we advise you to take the case to an Islamic court in your country.
Allaah Knows best.