Xenophile: a person who likes foreigners or things foreign [from Greek, from xeno- + -phile]. And by foreigners, we mean aliens. And not just humans who live in another country, either.
Aliens can be Intrigued By Humanity or a Fantastic Anthropologist, but what about the inverse - when a human character is obsessed with everything alien? This is often an evolved Naïve Newcomer character in [...] [tvtropes.org]