GH, I hate to tell you but I think my paranoia might have rubbed off on you today. Not to defend your W but lots of time my cell was in my purse right under my armpit and I never heard a thing. I would get home and see that I had missed calls. I changed it so that my phone would vibrate before it would ring, this way I actually feel it even if I don't hear it. I would suggest you program your wife's phone to do this if you can.
I understand that you are still a little suspicious, like in the fact that she didn't see the new playground. Who the heck knows where she really was or what she was really doing. Just know this, you have NO CONTROL over her. As always_14 has told me on more than one occasion I have to stop treating my H like a criminal, I have to stop looking over his shoulder at every move he makes. You must do the same. I know, it's more of the limboland that we love so much - NOT! But we cannot treat them like the bad child. "Bad wife, you didn't answer your phone, now you must suffer my wrath..." Leave her be. Let her do her own thing. DO NOT dwell on it, you, as well as me, are making yourself CRAZY. Just my .02 cents for the day. As always thinks that her, I and Underdog are triplets and you think that you and Rob are brothers, we might actually all be quints seperated at birth - lol.
Don't go crazy on us now, you have come too far to flip out and cave in to the frustration.