I believe that the song you are seeking is Sara Groves' "How Is It Between Us?"
"How is it between us?
When did I talk to you last,
and what has happened since?"
The rest of the lyrics can be found here:
You can hear a 30-second snippet of the song here (Windows Media Player):
This song can be found on her CD "Conversations", ASIN B00005ARDS,
released by Sony on March 20, 2001.
Biography by MacKenzie Wilson
"Sara Groves, a former high school teacher in her native Rosemont, MN,
burst onto the gospel scene at the dawn of the new millennium with her
fresh vocals and spiritual songwriting. She's been compared to the
likes of Shawn Colvin and Rich Mullins, however, Groves defines her
own musical demeanor. She cannot be limited to one exact label, for
her contemporary Christian hooks also mold into delicate pop. Signed
to Epic, Groves issued her debut, Conversations, in early 2001."
And finally, here's here website, which has links to video clips:
lyrics "how" "between us"
Before Rating this Answer, if you have any questions about the
information that I have presented, please post a Request for
Clarification, and I will be glad to see what I can do for you.
I hope that this Answer provides you with exactly the information
which you were seeking!