That just happened to me recently, with my best friend. I tried to figure out why. After she explained it, I let it go. There was nothing I could do to convince her otherwise, she had all these ideas in her head about who I was and her own self importance. In the end, she wasn't my best friend, because best friends aren't suppose to judge you for who you are.
What would you do if a giant lizard hid in your fridge?