The end of the article mentions he is looking for a “life partner”, not a “wife”. Me thinks it’s a little more clear why he remains single.
OK, so he's a homosexual. Too bad he didn't say that at the start of the article.
It also indicates he is evangelical--and evangelical/biblical belief by definition rejects homosexuality.
It really is amazing to me the suspicion and bigotry of married people against single people.
No wonder so many get divorced--with all the pressure to get married...to anyone.