i'd love a little help

i was reviewing my notes from class to look for a paper topic and i'm really interested in the quest for love, which seems to be a common thread throughout many of these stories. i'm especially intrigued by how it ties into conflict, whether it spurs conflict between people or leads to inner conflict in a protagonist. however, while i've made this observation and can apply it to several stories (coraline, stone animals, magic for beginners, monstrous regiment, and empire of ice cream), i'm really struggling on an overall thesis and what point i could try and make besides the obvious love is important to almost all stories and inevitably leads to conflict. i realize this is kind of vague and i'm struggling to get my ideas into words but if anyone has a suggestion i'd appreciate it...