愛する妻は、今日も他の男に抱かれていく ～他人棒で乱れ肉欲を満たしていく俺の妻

The contradiction is that her mind is satisfied, but her body is not.
Tsumugi tries to comfort herself and act as a good wife in order to make up for this contradiction.

When Kohei realizes what is troubling his wife, he tries his best to satisfy her.
However, his efforts are in vain, as Tsumugi's frustration continues to grow.

The tingling sensation of his wife, which he cannot suppress by himself.
And the conclusion reached by the troubled Kohei is that he needs the help of another man.

It was to ask for another man's help.