As if we really meant: "_On ne revient jamais a son premier amour._" But as a matter of fact, a man never leaves his first love, once the love is established.

He may leave his first attempt at love.
Once a man establishes a full dynamic communication at the deeper and the higher centers, with a woman, this can never be broken.

But sex in the head breaks down, and half circuits break down.

Once the full circuit is established, however, this can never break down.
Nowadays, alas, we start off self-conscious, with sex in the head.

We find a woman who is the same.