I think this is a problem with the romance in the game in general. It's been marketed as "mature" but 75% it's the opposite for me. It shows with the other companions, and it most definitely shows with Gale. I'm never gonna romance Gale but even I know that not backing him up and even agreeing with those who insult him while romancing him + his Sharess Caress scene is incredibly low and insensitive. But instead it's just played for laughs, because fuck Gale. At least you can control whatever goes on in Sharess Caress, the rest not so much.