פירוש על קידושין 11:13

There is a tannaitic dispute as to whether they actually have to be talking about betrothal or divorce for the act to be valid without an explicit statement. But R. Elazar holds that they don’t even need to be talking about the betrothal or divorce. But this seems perplexing—how does she know what he’s doing? Abaye explains that the betrothal or divorce is valid only if they were at least talking somewhat about the matter.