The husband responds to the fact that the woman calls herself a rose of Sharon, calling his wife a lily among brambles. The point is not that this man is now characterizing all the other women as bad and ugly. The reason for this image is that for him there is only one special woman who rises above everything else. That is his wife. His wife is the only one for whom he so longs in love. His beloved is his only beloved and he does not look to any other women.
2 As a lily among brambles, so is my love among the young women.