Confused has very valid points. you need to protect yourself financially.

so, was this out of the clear blue or have you been having problems for a long time? how long have you been married? have you been to couples' counseling? on one hand, it sounds like she has her mind made up but perhaps she was just threatening it? it's odd she's sat on the papers this long...unless she's already filing papers with a lawyer without telling you. is that possible?