Getting ready to send W this msg do you guys see any issues?

"DD would like to celebrate your b-day with you and I think it would be nice for her if she saw us both for a cake or something. Is there a particular time/location that works for you? she'd probably even like to stay with you that night, so can we swap night...s? I'll probably want to do the same on my b-day too. "

I thought part of DB'ing was to be the WAS's friend so I keep wondering if I should ask her how she's doing and if she needs anything (money particularly)? I don't think it's pursuing?

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