Adding to this, I think this is why his conflict with Macaque is so interesting, because it isn't a one-sided victim-murderer situation, it's a "two extremely selfish people have extremely fucked up approaches towards relationships and, god save us all, they WILL blame e/o for the fucked-up-ness"
As in, he is still somewhat of a pathological liar; he still reacts with violence first and thinking later; he still has to break things to truly understand why breaking them is bad, and he is still *awful* at apologizing because a part of him will always be too selfish to face his own issues