The conversation had deteriorated into arguments and accusations.

The conversation deteriorated pretty quickly after that, so I said good-bye and shut my phone off.

The conversation deteriorated rapidly after that.

After initial comparisons, spirited conversations may deteriorate into awkward silences.

This conversation deteriorated into speculation about whether or not Gautam had swallowed the piece of earlobe.

The conversation deteriorated into small talk.

The conversation soon deteriorated into a discussion about why humans had incisors.

Brett had asked her how she knew, and the conversation had deteriorated rapidly.

The conversation deteriorated into the mundane, and Chloe succumbed to the drowsiness.

His was not a cheerful presence, and their few conversations increasingly deteriorated into blazing rows.