Perhaps Buffy had tackled it a little head-on -- but it was no more information than had already been given. She'd alluded to moral questionability and Molly had correctly pricked the position -- if not the name -- of her not-fiancée. So the Slayer felt honour-bound to exposit away the mental acrobatics required to live with that choice. Self-indulgent? Certainly.

But she was in a self-indulgent mood. So: "The meltier, the better." And with decisive action, she caught her coat around herself and made for the bakery -- visible from the fountain.