A dapper older gentleman pursues wealthy widows for marriage. When he is tired of them he moves on to another one. The son of one such widow has learned of this man's intentions and his plans to marry another widow. Since he is still married, this will be bigamy and he solicits the support of the local police who are investigating his shenanigans. Informing his mother, he is surprised at her response.
The episode refers to a poem by Thomas Carew.

He That Loves a Rosy Cheek
by Thomas Carew

He that loves a rosy cheek,
Or a coral lip admires,
Or from star-like eyes doth seek
Fuel to maintain his fires:
As old Time makes these decay,
So his flames must waste away.
But a smooth and steadfast mind,
Gentle thoughts, and calm desires,
Hearts with equal love combined,
Kindle never-dying fires:
Where these are not, I despise
Lovely cheeks or lips or eyes.