I don't believe that the most reclusive of us wants to go through life alone. We are social beings and we want to have friends, we want to share our lives with someone. Perhaps it's just someone to talk to at first, but sooner or later we want it to switch to mutual love.
Mr. Kelly has written an interesting book. The first six chapter are about what intimacy is not. Intimacy is not sex, it's not common interests, it's not 118 pages of things.
Only with this base established does he go on to describing what true intimacy is, how it developes over time. He starts with cliches. This is the way we communicate when we really don't know each other. At that time neither party is ready to exchange the deepest emotions. And if you start to tell someone about yours they'll wonder what's wrong with you. By the seventh level however, which he calls Legitimate Needs, we need to have the ability to tell our partners that we're beat tonight and just want to have a drink and veggie out in front of the TV.
He continues with ten reasons that people don't have a great relationship. Unfortunately they all make sense. As you read them, you can see where relationships fell apart. Finally he concludes with designing a relationship and putting that plan into effect.
Mr. Kelly has clearly thought out the issues of relationships and has written a book that explains a lot.