You had been reaching out to him. Reassuring him that he does not indeed stand alone in his hardships. You are just friends. Mere colleagues. He had been needlessly kind to you before and you, you revere kindness. You repay kindness with absolute loyalty.
Because you know what it feels like to feel as if the world is crushing you. What it feels like to need help and have no one there. No allies to fall back on, no hearts nearby willing to shelter yours, no hands to catch you as you fall.
And now here you are, feeling blessed by H's joy. This is meaning. Kindness is meaning. It is a debt of love and mercy that I will do all in my power to repay.