Falling and Catching

After the 5th year at Hogwarts, Lily Evans notices the "arrogant toerag" James Potter has changed. While it should be a welcomed changed why are Lily's feelings towards him suddenly conflicted? She is supposed to hate him, isn't she? But hate is not supposed to feel this way, right? Too many questions cloud Lily's mind as they enter their 6th year at Hogwarts. (T rated to be safe!)