they're angry. it'd be far too easy to say the wrong thing and risk having everything they both worked for blowing up in their faces. not that pure vanilla can blame them. shadow milk is very clearly not okay right now, and pure vanilla can't say anything to ease the tension. he doesn't WANT to fight his other half, he has no intention of accidentally confirming some bias that was never there to begin with.
so, pure vanilla lets them rant. they probably need an outlet for their anger anyway, and pure vanilla isn't offended in the least. gods above know he's been there too, wanting to lash out at the world and everyone in it for some slight. he'd raged over white lily cookie more times than he can count, and that had been before fighting her for the first time.
he can also hear shadow milk asking him questions. did you know which of us you were grabbing back there? how is he supposed to answer that question without risking more ire?
because at first, no. he hadn't. both forms of the same cookie had been covered in that sticky tar-like substance, and pure vanilla could only pray he'd grabbed this one. and thus, his prayers had been answered. but shadow milk isn't in the right frame of mind to hear that, so pure vanilla only shrugs, not daring to answer verbally. it's not worth getting into a heated argument over maestro's twin, or clone, or whatever khaos is.
he's gone, and that's all pure vanilla cares about, really. he wishes that his bluebird would recognize this victory for what is it, or at least be honest without getting angry over it. but that's not maestro. it never has been, and it never will be. they're the kind of cookie, godlike being, that wears their emotions on their sleeves, and pure vanilla doesn't want to be the one to tame them.
maybe you don't deserve me. pure vanilla is also not going to argue that sentiment. but when shadow milk finally tapers off, pure vanilla takes advantage of that silence to approach shadow milk, pulling them in for a hug. he doesn't CARE if said hug is fought, pure vanilla isn't letting go.
"it was always you," he says quietly, reassuringly. "there's never been any doubt in my mind that it was you, and it will always be you. i knew from the moment we met and you trapped me in your spire that it would be you. i love you, i love you. i love you."
he loves them. pure vanilla feels his healing light encompass them both, surrounding them with a soft glow, warming him from the inside out. his injuries are lessening, and he can hope that shadow milk is feeling it just as soothingly.
"i love you, shadow milk. maestro, bluebird. i love you to the ends of the universe and back, for eternity. there's not a thing you or anyone else can do to keep us apart, because i will come for you and pull you out of the abyss every single time."