Dude, at 23, it's okay if you're not ready for lifetime commitments. "I'm not ready" is reason enough in my book. Nothing has to be wrong with anybody. Everyone can be all peachy keen and teh awesum and still not be ready.

It is better to not get married than it is to get divorced.

Marriage is the triumph of imagination over intelligence. Second marriage is the triumph of hope over experience.
(Oscar Wilde)