G, we switched the accounts. DSL was in STBXW's name so she called and cancelled it. Then I called and got a new account. We never used that email address for anything since we have our own yahoo/gmail accounts we've been using for over a decade.
As for saying no, I think her reaction is to be expected since she's come to rely on your availability. However, you need to say no not in a rude way but just in a way that you have a busy life.
Me: 35|WAW: 38|D: 6yo | http://tinyurl.com/2dxx7m6 Feb 2006, left, came back in two weeks Aug 2006, left again Apr 2007, filed for divorce Dec 2007, reunited Mar 2010, moved out, filed again