Anytime Lloyd has to talk about what happened to land him in prison. He is so consumed with guilt, unlike Erica and Shay, that he's practically reduced to tears even by thinking about it.
When Ray revealed what he did to the others, his whispering "please don't" is enough to break your heart. And at the end of the episode, him trying to explain what he did to the others. Its the first time in the series we really see past Lloyds flippant veneer to the very damaged and guilt ridden man beneath.