This is also referred to as the autistic burn-out: someone who was previously able to speak in coherent sentences, suddenly can’t utter a single word or bursts into tears at the slightest change. It’s the result of years of asking too much, of hiding and of “acting normal”. The person in question shuts down and seems to become more autistic. But that’s not the case: The person was always this autistic, they just ran out of energy to hide it.
