In fact, having reread Sakura and Ino's flashback chapter in the manga, I'm pretty sure that Ino's crush on Sasuke died the day Sakura abandoned their friendship for him (edit: if that crush even existed)... the rest was Ino humoring Sakura to indirectly encourage her to grow. That's not to say Ino didn't find Sasuke physically attractive, but I suspect she had a relatively low opinion of him otherwise, especially after the VotE in the Sasuke Retrieval arc.