Rex, I think that those of us who prefer utter isolation and silence may not be more emotionally self-reliant than normal people -- speaking for myself, I am just anti-social! I am married to someone who is also a self-confessed hermit. We love being far, far, far from anyone else -- a few times, we have found campsites where we did not see another person or another vehicle for days at a time. Heaven.
Thank goodness she is happy to go for long periods of time without music and without talking. If she were compulsively chatty, I would really miss her company on my camping trips. ;)