The boldness only comes from the fact that it is not necessary to guide her in such a fashion. He merely wants to touch her, however fleeting and innocently, to see just where the boundaries for this marriage are, in his mind and heart, as well as hers.

His experiment seems to pay off, when Padmé takes his arm; another platonic gesture that he enjoys, and recognizes enjoying it for more than what it (almost certainly) means. Friendship, he tells himself. Friendship is the base to build anything else on.

"Please, don't do that," he tells her with a small laugh. "I will grow to resemble a Hutt, and what sort of bodyguard would I be then?"

He turns his mind away from the idea of 'our time together,' because that time will be for the rest of their lives. Unless, of course, at some point in the future Padmé quits politics, no longer requires protecting, and no longer wants his company. It is a possibility, and one he will face with calm poise, as befits a Jedi, but it is not one he wishes to expect as a given.