She had something she needed to talk about, but if she actually put it into words, the facts contained in the "something" might irretrievably become more definite *as* facts, so she wanted to postpone that moment, if only briefly.

“I'm not saying it isn't habit forming, but it's much milder than tobacco, alcoh…”

“Lo que quiero decir es que el dolor se vuelve crónico. Engullido por la vida di…”

“En ese momento, por fin lo captó. En lo más profundo de sí mismo,Tsukuru Tazaki…”

“And then, inside me, the axis of time gave one great heave.”