Since you commented my sitch is similar to yours, I would recommend the best friend approach. Don't challenge her, yes do your things, but do them with her in mind. Ask her so you can schedule your events with the others interests in mind. You will be courtious and mindful of what she needs.
Stay in C. for any anger issues and work on active listening, there are many books on it and most relationship books at least touch on it. If you give more detail I am sure others will respond as well.
Married:10 years D final 8/28/08 10 minutes is all it took Life goes on and DB was no small part in growing from the Divorce!