Let a peaceful evening remain peaceful without using it as proof that an old concern disappeared.

One good evening is evidence of one good evening. There is a temptation, after a calm stretch, to announce that the trouble is behind you, and the announcement puts weight on the calm that it cannot carry. The other person then has to either agree everything is resolved or spoil a pleasant night by saying otherwise, and both options cost something.

When a peaceful evening happens, let it be what it is and say nothing about what it proves. The larger question can be raised on its own day, when it is not standing in the middle of something good.