λέγει που Ἡράκλειτος ὅτι “πάντ
Heracleitus says, you know, that all things move and nothing remains still, and he likens the universe to the current of a river, saying that you cannot step twice into the same stream.
Though you cannot step twice in the same river, no force of nature debars you from pissing in the same sewer time after time.
Likewise the ease of rekindling an old hatred contrasts with the difficulty of renewing an old friendship.
In this regard, love affairs are more akin to sewers than rivers.