I find myself liking it more and more with every rewatch, though I doubt I'd ever ship it. It doesn't help that Paul has more chemistry with Mellie, not counting his friendship-chemistry with Echo in early S2.
I don't consider his fascination with Caroline creepy, just very intense. This, imo, would have been true regardless of who Alpha had sent him a picture of. People often ignore or forget that, by the time we meet Paul in the pilot, he's been working on the Dollhouse case for
a very long time and putting a face on his obsession only made the obsession worse. Had Alpha sent him a picture of Whiskey, or even Victor, I believe he would have become just as obsessed, though I will admit that Echo being female added a slight touch of sexuality that wouldn't have been there with Victor
