It's just been sitting there festering for awhile but I think you've used the time to good measure.
You still have to grieve. It's been a long time coming, sort of like seeing a beloved relative slipping not so gracefully into old age. The end hasn't been so sudden, but it's still an end (which opens you up for a brand, new beginning!).
You've had a lot of things happen with your health and family over the past few years and especially recently. Now you can really put some energy into moving forward in ways that you were hindered from by still having that last pesky little thing that needed to be taken care of.
Congrats Wii and sorry that this is a difficult time for you. Go ahead and cry, talk to a good friend, treat yourself well. NH is right -- this is a step forward and new beginning for you. If it weren't, if it were really the trivial matter you are trying to make it out to be, then it wouldn't be so hard.
Be compassionate and honest with yourself. Respect your feelings, don't neglect them.
I got a message from a lady today obviously a little pissed with me but I thought it was quite clever...as inappropriate as it probably was. The heading on my profile is "You + Me = Us" and her message was "Us - You = Me" The harem is getting snarky!