Why nobody wondered about Potter’s sudden interest in Ginny, he would never understand. In sixth year, he went from oh, Ginny? She's Ron's little sister to oh, Ginny? She's the love of my life. Especially after the Weasley twins introduced love potions to their store. Coincidence? No! Ron even tried the love potions on Hermione, but her occlumency shields protected her without her knowing.