If two personalities click, other things can be adjusted if you have intelligence enough. I don't think that married people ought to be conscious of the fact that the are married. They ought to live in sin, so to speak. Right there I almost forgot my promise. The moment you take anything for granted, it loses its charm and you lose your perspective.
Nothing is sure.
In marriage you ought to live with the constant knowledge before you that if you do not work at marriage you may lose the one you love. No, it would make it more secure. If you had a job and knew you might lose it, you would work all the harder to keep it. Marriage is a career in itself. To succeed in any career you have to keep on working at it.