I'm on my 4th playthrought and somehow (and it is beyond me) I'm romancing Gale??? I literally only talked to the guy a couple of times and was as nice as with everyone else... Then comes act 2 and Gale is declaring that I have to chose between him and Astarion... How did this happen? I had no intentions whatsoever to romance him, didn't sleep with him, barely talk to him. And yet the game flags it as we're romanced? Should I just avoid talking to him in act 1? Is it a bug or was intended? This happened in each playthrough.

I'm on patch 2, had to roll back patch 3 due to graphical glitches in cutscenes.