Hissing, just as venomous, unwisely squaring up, "Do you think I don't know, do you think I don't care about — " But Alfred steps between them, and though it's a physical effort Marcus stops himself, takes a ragged breath. And just like that, after that first push, all that frenetic energy drops away in horrible freefall. He's wan suddenly, hollowed out of all the anger and the disbelief and finding, as ever, guilt flooding out like black water into every available space. He can't respond to Damian's continued threats beyond shooting him a dismissive sneer.