Cam, Your best friend would not do this to you, just think about this. I'm in the same shoes and my W already got her stuff and moved back to the state where her family is. Our annyversary is coming up and a paid trip to Europe that was my W's b-day present.
She said she doesn't want to go on the trip. It hurts like hell, but I decided to not even mention the annyversary or the trip anymore (after stupidly trying to convince her to go a couple of weeks ago).
I decided to go no contact and GAL. This is all I have left and I suggest you do the same. It's our only way to get back to sanity in the near future.
It will still hurt and I'm sure there will still be days when we will break down, but the sooner we accept them, the sooner we will recover. The future will bring something good for both of us and for the rest of the good people on this forum.
