Pretty Sure Astarion knows, Like if you have sex with Lae'Zel, he even mentions it the morning after like "How was your fun little romp with Lae'Zel.", Mind you, this is before you kill off the goblin leaders or raid the Grove.
Sure, in that way they respond to it. However, when their own romance sequence starts, suddenly they seem to've forgotten it. Of course Astarion joins you way at the beginning, so you can tell him no right from the start pretty much. So then it doesn't interfere because he already started his romance sequence and got turned down early.
I think Halsin and Wyll are the main culprits here. Well there's Gale also. I remember him being turned down by my Tav and then somewhere in Act 2 he starts trying again. I feel that that was a sequence that was triggered outside of the romance sequence. I get the feeling that some things are triggered within the romance sequence and others are just triggering points to start the romance sequence throughout the game. It's like the previous playthrough I had where I got the convo option where you can say something like "we never really connected but there's something more to us" or something like that. And that was after going swimming.
Idk, Halsin always acknowledges relationship with SH and proposes to join on next swimming session every playthrough KEKW
So that's after the swimming session but he starts his romance sequence well before that and by that time I'm already kissing Shadowheart right in front of him sometimes (depending on the camp). I mean, he couldn't be that oblivious, could he?
