I missed the stuff in July about relationships. I have a different perspective than what was posted. Become the person you want in a relationship. Often, your partner will follow. Push yourself. Eat better. Exercise. Make more money. Make a bigger difference. Read the Bible.
Expect it to take an eternity for them to notice. When they show interest, start doing it together. Some people won't follow, but many will due to the trust and admiration they had for you that caused them to marry you in the first place. A lot of people will talk about changing their situation, but they want their partner to create the change. You can't push people, only bring them along. I believe it was Lombardi that said something to the effect that leading by example isn't the best way to lead, it is the only way to lead.
I have not found that most people have crazy just below the surface. I have found that our society is very good at suppressing human exeptionalism. Many of the people I thought were crazy have calmed down and improved significantly as they aged and had better examples set for them.
It is human nature to want exceptional friends/partners/relationships. Everyone else wants that too. We need to make sure that we become the person we want a relationship with.
That said, some people are just downright crazy or evil.