AFWAW, Melissa has added something that is pertinent.
I'm not at my W's beck and call. I do make her wait and I don't jump just because she asks. My life is mine; and when she fits into it for a convo, I listen. I'm just not available all of the time.
Usually we have our convos if she's over to see the kids. This only happens approx. 2 times per month. So it's not like we're conversing in-depth every day. I still practice the short phone calls, I try to end them first, and I never initiate a call unless it's financially or children related.