[It was unexpected, but not entirely unwelcome. Spock had very little physical contact with Humans, or any other species, unless he was quite familiar with the individual. Yet, he was not offended by the Doctor's sympathetic outburst. Indeed, he was quite touched, in his own muted fashion.]

There are many logical reasons to discount the idea of returning to one's own home planet. [He only hopes that the Doctor's reasons are good, and not detrimental to the man's own well being.]

Is this why you insist on traveling at such an impetuous pace?