Silence in Beloved

I've noticed throughout Beloved so far that there are two types of silence: inhibitive and beneficial. For instance, the silence that Shethe and Paul D share after having sex gives them both time to reminisce about their past experiences together, but he silence that Paul D offers to Sethe'a questions about Halle's whereabouts only serves to tear apart the slim, green foundation that they have formed. Just some food for thought while reading this weekend.