...It had nothing to do with how you come across. [He helps her inside once the elevator arrives, then presses the button to their floor.]

Understand that I have spent the vast majority of the past seven years in isolation. I am unaccustomed to company. [Or accepting help or concern, of any kind. No matter how much he slowly gets acclimatised to it, it's still a long process.] Even so, if you need me, my door will always be open to you.