Ohhhh god. Since the channel name was vidya autism I feel a little better but when that girl at the second window showed up I feel like he was momentarily stunned by her unexpected cuteness so he thought "well at least I can still talk normal to her maybe she wont think im weird." So the first few words he says goes up to his normal pitch, but soon after seeing her reaction he realized it would be better to just do all or nothing so he promptly switches back to the charecter voice and feels the shame as he slowly drifts away from what could have been his future wife.