There are details missing from the story, and maybe the wife had raised the problems/divorce before and he ignored it. We don't know.

But if you get home and the papers are on the table as he mentioned, that is past the point of talking with your spouse about your relationship, it is the time to get out, think straight and then head to a lawyer to make sure all is done right.

(coming from someone that has been divorced for 5 years and am in good terms with my ex-wife, we help each other all the time and talk about things/life regularly as friends)