Well...Josh Jackson (PACEY!!), her co-star, former boyfriend, and apparently, former friend, was asked about "Kate" during his promotional run for Bobby, and he makes it quite clear that Katie is no longer a good friend of his.
Transcribed for the lazies:
Buckhead: So, do you still keep in touch with her?
JJ: No. I haven't heard from her in a long time now, eighteen months.
Buckhead: You think if you'd call, she'd take the call from you?
JJ: I would guess no but I haven't tried.
Buckhead: Are you kidding me, you think she wouldn't? You kissed the woman!
JJ: You know, she's obviously moved off into a different part of her life, so I somehow doubt she's sitting around waiting for my call. I'd like to believe that, but I just don't think it's the case.
When jokes are made about Scientology, he had this to say:
"Well, you know, as easy as it is to make jokes about this, at the center of it is a woman that was once a very close friend of mine, so it's difficult for me to find the humor in this. But no, I don't mean extraterrestrial, I mean the married and baby portion."
He tries to be a gentleman and make it all about the baby thing, but we all know the truth.
In happier times:
To hear it for yourself, click on the Buckhead link. Starts around 2:40.
Photos and links courtesy of the Josh Jackson Network