a) the wife in conflict starts slowly;
B) The husband allows his wife to influence their decisions.
On the contrary, there are also unfavorable indicators - the so-called 4 riders of the apocalypse, which sooner or later lead to a break of relations:
1st is a personal critic. That is, a discussion of the conflict situation goes into attacks on the personality of a partner.
2nd - contempt.
The 3rd is a cold wall - when, in the process of finding out the relationship, one of the partners "closes" and stops listening.
4th - protective behavior or, simply speaking, criticism in response to criticism.
The presence of listed manifestations is really detrimental for the relationship.
And the casual quarrels are not a sign of an unhappy union. On the contrary, if people are silent and never figured out relationships, it indicates that they are indifferent to each other, or they diligently silence discontent, and this is a time bomb.
These are my sound, reinforced scientifically, thoughts about the perfect relationship.