BG3 Act 2 - Astarion romance scene - unprovoked confession

Astarion confessing his love for my neutral good Tav unprovoked (I haven't met the Drow in Moonrise Towers yet.). Very High (73) approval at commencement of scene. Did initial scene with Ketheric Thorm, drank and shared stories with Thisobald Thorm, rescued Arabella, informed Arabella of her parents condition.