Retreating into autistic fantasy (daydreaming, eccentric speech) as a defense mechanism for avoiding intimacy.
Example: A 15-year-old boy dreams of being the world chess champion. He spends nearly all of his time alone studying the game and won’t discuss other topics.
Grinnell, R. (2016). Schizoid Fantasy. Psych Central. Retrieved on May 19, 2017, from https://psychcentral.com/encyclopedia/schizoid-fantasy/