The question is broad. That is what makes it kind in one relationship and heavy in another.
The sender often means, “I noticed a change and care about you.” The receiver may hear, “Your mood is visible, I need an explanation, and your answer has to settle my worry.” Those meanings can exist in the same exchange without either person planning them.
For someone with an avoidant attachment pattern, broad emotional questions can create a fast sense of demand. They may not know what they feel yet. They may expect that “fine” will lead to another question and an honest answer will lead to a long conversation. Withdrawal solves both problems by reducing access.
That explanation is a possibility, not a rule. Plenty of avoidant people appreciate check-ins, and plenty of secure or anxious people dislike being examined when they are tired. The useful question is not “Do avoidants hate this phrase?” It is “What job is the phrase doing in this relationship, and what happens after it is asked?”
