Listening to this song and styling Tango.
The thing about Tango is that he's worn two hats that aren't his in his life: Loverboy from The Cuckoo's Nest, and Tango the Lean Dog. He hasn't had a whole lot of time to examine the Kev underneath, and that, well, it's coming to a head now.
He wishes desperately that he wasn't "pretty." He's convinced himself none of this would have happened if he'd been an unattractive kid. And he's self-conscious, still, hence all the piercings, and haircuts, and tats. Trying to cover up the kid who was taken and used for his physical appearance.