Colleen Hoover said this quote

“ I have always enjoyed kissing the girls I've kissed in the past but only because I was attracted to them. It didn't really have anything to do with them in particular.When I kissed all the other girls, I felt pleasure. That's why people enjoy kissing, because it feels good.But when you like to kiss someone because of who she is, the difference isn't found in the pleasure.The difference is found in the pain you feel when you're not kissing her.It doesn't hurt when I'm not kissing any of the other girls I've kissed. It only hurts when I'm not kissing Rachel.Maybe this explains why falling in love is so damn painful.I like kissing you, Rachel. ”