I feel that in many cases "I already am in a relationship" is leading the other person on. It implies that if you were not already in a relationship, you would consider their advances. Hence my mentioning of a hierarchy, it is suggested that if the current relationship ends, they'd be in the game again. This might be what you wish to convey, but if you are simply not interested in them, because you have different priorities in life &c, it''s dishonest.
The two characters in game whom you can tell that you are already with someone else are Halsin and Minthara. Halsin replies by telling you that he'd be open for a poly-relationship, while Minthara suggests that you should simply break up with your current partner to be with her. Both can be avoided if you tell them that you are simply not interested in them as a romantic partner. I think it's Lae'zel who has the "I am flattered, but I am not interested." option which for me is the best way out because it acknowledges your appreciation while at the same time shutting down the subject without question.
No, of course that's not what I meant to convey, I didn't even think about the fact that my current relationship might be expected to end, I don't understand how I can love someone and still plan to end the relationship. Much less look out for some sort of "replacement" in advance. It's a bit wild to me, and on my part the response, "I'm sorry, but my heart is already taken," is completely and crystal honest, so I didn't think of that option for a possible reaction, but of course, if a character can take it that way, and come up with some sort of "love hierarchy" for themselves, it's really best to refuse them in whatever form they perceive it as an appropriate refusal. "I'm flattered, but I'm not interested" can also be taken ambiguously as "You're just not interested yet", that is, as a hint of an opportunity to gain that interest, to somehow show up and prove themselves. I thought that the honest answer that I'm already in a relationship shows that I have another priority in my life, and that priority is someone who is standing nearby right now reading his book, and the other companion, no matter how good and wonderful they are, will never be my priority, but may become one for someone else. By the way, sometimes I feel sorry for them that they are so all lonely and unloved walking around, especially Lae'zel who clearly needs sex and she even tries to seduce Will at the party, but Will is depressed because of the horns and doesn't notice it, and Karlach wants a "hot guy". In my case, Halsin, who, in the presence of such hot ladies, is prying into Tav, who is clearly in love with Astarion, looks like a concrete idiot. In terms of realism, of course, it would be much more interesting if the companions built relationships among themselves instead of hovering around Tav, and it doesn't require sexy cutscenes, dialog lines are enough, but it would make the relationships in the group much more like those of real people, and the game would feel less like a dating simulator for one.
Originally Posted by Anska
I can't say for sure for Halsin. He had a new, platonic dialogue when finishing his quest in the Shadowcurse, but he spent a very long time with Orin in my recent run, so I am not completely sure if I have not simply missed the time-window for his proposition. Wyll though, doesn't seem to start his dance scene if you did not previously flirt with him during the Tiefling party (which is really the only occasion you can flirt with him) since patch 6.
Thank you! That's a good fix. If I do get to play this game some more, Will won't be so frustrated anymore.