A very short song by the late, great Tim Hardin (probably best known for the song "If I Were A Carpenter") sums up how I feel:

How Can We Hang On To A Dream?
(Words/Music by Tim Hardin. Copyright 1966, 1968 Faithful Virtue Music Co, Inc)

What can I say?
She's walking away
from what we've seen.
What can I do, still loving you, it's all a dream,

How Can We Hang On To A Dream?
How can it really be the way it seems?

What can I do?
She's saying we're through
with how it was.

What will I try?
I still don't see why
she says what she does,

How Can We Hang On To A Dream?
How can it really be the way it seems?

Is this really all just a bad dream, a nightmare? When I wake up in the morning will she again be lying there beside me once more?

If only, but sadly, not.