I've brought my wife to the US on a fiance visa and we've been married for a year. It became painfully clear that she only married me to come to the US and she is not in love with me like I was with her. Few months ago she received her conditional green card. I want to divorce her but I found out that it is very expansive and time consuming. I thought about just not filing form I-751 with her when the 2-year anniversary approaches since, as I understand it, she would be required to leave the US. Or may be filing for divorce right before 2-nd year anniversary? Has anyone been in this situation before? What would you recommend as the best course of action?