“Love without communication is like two sides of a coin that live together, but never see and meet each other. Love without any medium of communication is full of struggle and a yearning. It is just like living with one hope in mind and spending your whole life waiting for each other.”
Related quotes

“Our love of each other was like two long shadows kissing without hope of reality.”

1963, American University speech
Context: World peace, like community peace, does not require that each man love his neighbor — it requires only that they live together in mutual tolerance, submitting their disputes to a just and peaceful settlement. And history teaches us that enmities between nations, as between individuals, do not last forever. However fixed our likes and dislikes may seem, the tide of time and events will often bring surprising changes in the relations between nations and neighbors.

Jean Vanier, From Brokenness to Community, 1992, pp 35-36
From books

Source: Dictionary of Burning Words of Brilliant Writers (1895), p. 118

“and the two of them loved each other for a long time in silence without making love again.”
Source: Love in the Time of Cholera