How in the HECK are you guys sleeping with anybody?! My companion approval always sucks no matter who I have with me and what choices I make. Sometimes I feel like it doesn't even move at all, and I've done 5 playthroughs like that now. I've had one playthrough where Astarion propositions me and his approval rating wasn't even that high but everyone else routinely turned me down, every time I made it to the camp party.
I don’t know, I’ve never had a companion’s approval going below neutral. The only exception is Wyll, he does not approve of an alliance with goblins.
However, if this is a problem for you, I can advise you to use the approval bug (F R E S H T H E W O R M) or cheat engine tables.
