I think all characters need more romance scene
This!
I'd also want the scenes to continue a bit further. Yeah, I kind of wanted to have a really cultured and mature reasoning behind this, but I don't: I just
want more. :'D
If they weren't comfortable actually showing it, I'd be happy with just fade to black and the narrator continuing from there.
When it comes to Astarion, I'd actually be really interested in having a scene where they would pause the situation and talk about how Astarion is feeling.