This leads to a total inversion of the Biblical teaching. In the Bible, divorce is justified on the grounds of covenant breaking. This, no less than the modern secular idea, is to assault the covenant. It is to say that one can default on the marriage covenant and never suffer the consequences. This, no less than the notion that the waning of love is justification for divorce, is evil.
Marriage is a lifelong, covenantal union.
It is the central human covenant bond that cements the family, the church, and the wider society, including the state.