People change, that's how life is. Louis just can't figure out what happened to Harry after their break up. Cause something obviously did. -a/n- I wrote this to spread awareness about bipolar disorder. I, myself am suffering from this condition as well I have relatives who has it too, so I have perspective. (Not writing this from what I've heard from the internet...) If you are bipolar and don't feel like this is you at all, that is completely valid, everyone has it differently. Remember to reach out to your doctor if you relate to the symptoms. <3