This is what I heard too, it was changed in patch 7. I had the dance scene trigger when I played a character who was to shy to initiate it, so the bug actually really suited the story. But it also suited the story for them not to actually get together yet, and I thought there'd be another chance in act 3. When there wasn't, I went back to a previous save and it had been patched out. I did manage to hack a save with LsLib to make the game think we'd flirted, and I thought I'd written down how I did it, but I didn't sadly. I tried a similar hack recently: my current character started dating Minthara, but when she said they'd sleep together, ol' squidface got jealous and tried to sleep with him instead.
