I know that the topic has already been discussed, but still...
I really liked the developers' approach to love relationships in their previous game, DOS2. The writers gave us, the players, unprecedented freedom by removing restrictions in the form of race, gender, and physical difference.
Why not give us the opportunity to build romantic relationships not only through sex? I understand we will have a choice either way - either a serious relationship or a one-night stand. The concept of asexuality would fit in here, why not?
Yes, I understand that Astarion and Lae probably won't be interested in that kind of relationship, but we still have plenty of potential options.