The answer you give to avoid tension may leave the tension waiting inside you.

Agreeing in the moment can feel like generosity and often works as a delay. The discomfort you sidestepped does not vanish; it moves inside, where it turns into dread about the commitment, resentment toward the person, or a slow search for a way out. The room stayed calm and you took the whole cost of that calm.

Notice the next yes that arrives too fast. Say you will answer tomorrow, which is a complete sentence and buys you the honesty. If the answer is no, saying it now is cheaper for both of you than saying it later.