I think your misinterpreting her desires, she's in to you but not THAT into you....not yet at least.So apparently after like 3 serious chats (im still in act 1) the Cleric is ready to go to pound town.
BG1-2 you had play like 75% of the game to even get that far.
But yeah my one main beef with my party is that romances happen way too easily. Gale and Halsin for example just suddenly were super into me, and I didn't even pick one flirty line the whole time. Even Lae'zel just suddenly wanted to get freaky with me.
I feel like I'm having to beat off my party with a stick to stay out of my pants. At first I thought it was because I was playing an 18 charisma bard (in which case, I was like hey fair play to the game), but it sounds like charisma doesn't actually influence that at all.