Three years ago, Theo Nicole Lorenz began going by the gender-neutral pronoun "they." Some people didn't get it.
Lorenz is nonbinary, meaning that they don't identify as a man or a woman. About three years ago, they ditched the more standard gendered pronouns ("he/him/his" or "she/her/hers") in favor of "they/them/theirs."
The whole concept of being nonbinary is something that people sometimes have a tough time wrapping their heads around, but sometimes life just doesn't fit into neat little boxes.