[He takes a step back a moment, hand clutching to his chest as if stricken by the other's words. It only lasts a moment however and he can't help but smirk as he walks around the other in a slow circle.]
Oh Doctor, now you've gone and hurt my feelings. Why must you lie like that? You know exactly who I am. Denying it won't change that.
You alter whatever you choose as long as it favors your side. The only thing you don't interfere with are fixed points in time...and that's only because you can't. Everything else you simply don't care to get involved with.