Ah found it! Here's the quote by Chris Avellone which explaines why the NWN2 romances to put it bluntly suck. As do most of Obsidian's romances. It's from an interive he gave in 2006 at RPG Codex.
I wished I believed in romance more than Bioware.
I just can't write it unless one of the pair gets impaled on a pike, set on fire, or betrays the other and then impales them on a pike or sets them on fire. Generally, I prefer unrequited, melancholy, quiet suffering whenever possible, which really doesn't go over well with a lot of the role-players out there.
Hope that helps calcify things for all you romance obsessed individuals 