She is sure of her position, but John is a dreadful "relation-in-law," and it is hard to love such.

It is sad to think such a mother or wife makes a fatal mistake from the very start, and herself brings about the state of affairs she dreads.
The recognition of a fact often seems to make it doubly true.

The knowledge that relations-in-law are frequently relations-at-war, predisposes both parties to unjust judgment.

Did each determine to see all the good possible in the other, connections-by-marriage might become kin-at-heart..