Something about the Sopranos i don't get

how was Tony able to forgive Junior after the first botched assassination attempt? Then it bit him in the ass later when Junior shot him while he was being his caretaker. And before the second attempt, Junior would mock Tony for not having the makings of a varsity athlete. And Tony still didn't have the heart to murder his uncle, even after Junior shot him + failed to have him murdered previously

Tony should've won a Nobel fuking peace prize for that as far as I'm concerned