After carefully reading today's parsha, I believe we can clearly see a message which is applicable in today's shidduch and sholom bayis crisis times.
The passuk says: כי יקח איש אשה ובא אליה ושניאה. When a man marries a woman... he will hate her. But, כי תהיינה לאיש שתי נשים האחת אהובה והאחת שנואה. When a man will have two wives, he will love one and hate one.
So we see: If you have one wife, you will hate her; if you have two wives, you will love one and hate one. The only way to have one which you love is to have two.