If there is one thing I think I may have learned through this experience it's that the "need" thing is way overrated! Though I'd like to think that if one died tomorrow there would be 15 or 20 minutes of sadness!
Just because you don't need someone, doesn't mean you don't love them. Let me think about this, I don't think I'm expressing myself very clearly on this!!
More classroom unpacking today -- at least all the furniture items are in place. And it's cooler and MUCH less humid today -- all good.
As far as your W, if you do proceed with D, do you think she'd freak out, try to get you back, etc?