In my own personal perspective, Nick should not have been committted in a relationship with Louis in the first place if he already knew what will happen at the end since the the one who will get hurts the most is Louis.
LoVe maKeS yOu Do cRaZy THinGs
No, Nick "Choose" to hurt Louis, he can use 1000 different method to end their relationship but instead he chose the most hurting one. And the thing he said to Loius that he is the most normal and Louis is his "mistake" is just straight asshole.
Agreed. I don't believe he ever loved Louis.
Nick dumped Louis cause of his father.. like he didn't have a choice, he choose his father over the one he loves, or the fear to disappoint his father is bigger than his love. but still he did hurt L a lot, 7 years is not nothing. what do you guys think about it ?