Here is a tender and vulnerable moment in mid-2014 where One Direction are singing “God Only Knows” by the Beach Boys and Zayn decides to sing the most pivotal lyric of the song directly to Harry.
The WAY Zayn is looking at him. The fact that he felt compelled to sing this particular lyric to him!! Do you know what this means? It means Harry was his whole world at this time. The lyric proves it, but so does the sheer adoration and vulnerability in his expression. Zayn is looking at Harry with everything he possesses and with everything he is. Absolutely everything.