The essence of "Peacemaker" is the irony of what he is. As seen in "The Suicide Squad", he believes a certain thing and acts a certain way because it is who he is. And from the get go in Episode 1 of his spin-off series: "A Whole New Whirled", there is a slightly more empathetic approach to who he is despite the fact that he is a mess and an idiot on so many fronts.