Yeah he was trying to repent( even tho he really didn't need to) but in the episode with SooHwa speaking sign he realized that SooHwa was different and that SooHwa wasn't psycho like Byung and that baby Soo was kind and sweet and cared about how Yohan was feeling
So...wonder if yohan started in with soo hwa cause he thought he woukd end up like that asshat because of his voice