Dale, it's only really over when you decide it's over and you have no more hope left in you, because it's always possible, as long as you both are living, that the two of you could get back together. I don't see this as a huge change in your situation. They were already living together. They are looking to live somewhere else now.
Are you still supposed to go on a trip with her?
M: 33, W: 30 @BD M 7, T 10 BD: Early Dec W left: Late Dec W got stuff: Late Jan W sent S papers: Mid Feb OM cnfrmd: Late Feb
Pain can yield tremendous growth OR everlasting sadness and bitterness.