Kyrie knew that sentiment very well. The incapacity to walk when a new world showed itself, a myriad of new perspectives, but he couldn't enjoy them. He was stuck in the past, reliving pains and misery endlessly. This misery he was acquainted with.
A misery he suffered alone all his life, never letting anyone come in and help him. All he did was fight and endure by himself until things solved themselves, or he fought them to earn closure.
This woman... they were kindred spirits even if he disliked it. Even if he wanted to negate it with all of his strength, it is impossible to do so. From their sins to their feelings, the crushing reality of their lives, and the pains all around them.
The desire to give up, and yet live. He had this desire in the base. Kyrie cursed himself for being weak and incapable of walking forward with his dear friends when he refused to face his weakness and grow beyond them…