He's reckless when it comes to BO even though he's only trying to protect him and the others around him.
He's also can be reckless when it comes to cases, he put his life at risk like other detectives while knowing the truth and the criminal coming after him.
But he always has a reason to why he's being like that!
I can forgive, but I cannot forget, is only another way of saying, I will not forgive. Forgiveness ought to be like a cancelled note - torn in two, and burned up, so that it never can be shown against one.