marriage extremes

I was thinking over some verses in Ephesians 5:21-32, and some thoughts led to the idea that
extremes are needed in marriage, as marriage is a reflection of the church/Christ relationship. As the church, it is wrong for us to find approval from anywhere else but in Christ. So, I'm thinking it is also not ok for a wife to find approval from anywhere else other than her husband. Not to say she shouldn't do a good job at whatever she is doing, Proverbs 31 speaks to that, but that emotionally she should find all her worth first in Christ, than in her husband. This is a lot of responsibility for the husband, but I think is SO important in the function of the relationship. Maybe looking for it elsewhere opens the door for the enemy to get a foothold. Just some thoughts I've been thinking through....how many times have I wanted someone's approval, and where did it get me?