Eve Precious than Adam?

I was encountered a family problem inside the society family matters recently that shared by one of my secret group......im become so reluctant why those such incident could occurred in family happiness?

I was became headache, when i watching movie and there is a snapshot about the wedding, the priest asking, 'do you', 'comfort her/him and love with whole of your heart'?
This phrase of word is not a joking word or comedy scene in front of the priest again in front of the holy altar in the church but also a serious commitment and 'promises' made by the two 'human being' with God, the divine creator, the secret relationship Maker. However, after many years of marriage with happiness and love, generally arguments, quarreling or disagreement will incurs among the husband and wife but the PROBLEM here......once the testing or temptation come, both will compromise, disagree and jeopardize among them. Some (either the man or woman) will spoke some words that could not be spoken and some will act that should not be acted. As a result, the word of 'we separate' will heard in them. WHY?

Where and why such temptation can shaken their marriage life and where is their promise with God that ' I DO COMFORT and LOVE Him/Her'? So they against and broke their promise that have been made with God and whose witnessed by the priest. They're Hippocratic.
Why they not let those satan go away from them and let God bound and abide with them through His precious blessing? Why happiness husband and wife marriage shaken by the argument and quarreling? Why not given each other tolerance, smiles, joking to enhance their love with each others? WHy?

Can you answer me that WHY?