Thank you!!! Actually I adore the hell out of Cole, I just had already had him in my part for a long time in my first play-through when I romanced Dorian as a male Trevelyan and I felt I'd heard most of what I would hear from him so, since I was romancing Sera, I figured I'd try her. I'm sure she wouldn't mind if I kicked her to the side and let Cole in... though, honestly, I don't know how that will help my Dorian/Iron Bull situation but you're right, the Dorian/Iron Bull/Cole is hilarious.
It's good to know it's not something I screwed up... I don't mind finishing the game as long as they start flirting at some point and I haven't ruined it somehow. This is my third play through and I pretty much ONLY did it for them (okay it was a little bit for Sera) so it would be extremely sad for me if they didn't even flirt.
Thank you for the information. It's good enough to know that for some it wasn't until far later in the game.