(Also supportive of their interests, I remember at the Teifling party I could only react sarcastically to Gale’s story about liking to spend nights at home by the fire, which I thought sounded lovely but didn’t have an option to be nice to him.)
No, you cannot be a fellow nerd. I am not sure if it is different for other spellcasters but even Bards apparently don't like quiet nights with a book. Though you can have a nice conversation about Tara in the follow up. What bothers me in the brothel is that he doesn't have even fitting replies to all that, which he is usually allowed to have, even if you fail that persuasion role he is still nice.
Just adding more kind/supportive options in general of Gale and other male characters, I know I’m only part way through the game atm, but I was already worried about situations where his feeling might not be considered, I had hoped that wouldn’t be an issue in this game, so I’m sad and disappointed to see it is, and I hope they fix it soon.
That would be lovely, yes.