"'Course I mean it," Oliver assured him with all the sincerity he could muster. "I like havin' you here, and I like knowin' that you felt comfortable bein' here for as long as you've been."
He paused, his head tilting a little to the side in consideration, and a tiny smile curled the corner of his mouth. "And you're welcome to come back any time you need. All I ask is maybe you knock just in case the elf's over." He figured he didn't need to spell that out at all. "And if I'm ever not in here, and you need to spend some time away from your own room, you come on in when you need it. I don't mind. Bring Juno. Watch some movies. Do what you gotta."