I made all “good” choices and pretty much ignored any approval ratings. After defeating Minthara, everyone else rejected my character. Not Asterion.
With the right combination of dialogue choices, I got the romance scene.
yes i have romanced astarion many times without having to make evil choices, as long as you're nice to him, you can still help people, just without being overly nice as you do. he's very sarcastic & single-minded, & yes he IS self-serving, but there's a difference between self-serving & evil... he doesn't have a problem with 'good' as long as you're not too overly sweet to random people, while also not being a jerk to astarion himself. there is a LOT more to him than the impression he tries to put forth & the walls he tries to hide behind, & when you talk to him the right way, he is by far very, very sweet, once you get past his walls & dig deeper, which is what i love about him, the layers, & that's why he's the only one i EVER even think about romancing
