What does Ken Sleight have to say about "companionship"?

From the text:

"A lot of us are like that—I’m like that, Ed Abbey was like that, and it sounds like this McCandless kid was like that: We like companionship, see, but we can’t stand to be around people for very long. So we go get ourselves lost, come back for a while, then get the hell out again." (Page 96)