My Role in Keeping You From Slandering Me

The relative severity of sinning knowingly to fulfill a desire versus sinning out of willful ignorance.  The roots of the concerns of “Ch’shad” and“Maris ayin.” The requirement to help avoid people erroneously besmirching us. Remarrying based on testimony whose strength is not well known among common people. Conversion with obviously impure motivations.  

Citations: Aside from the commentaries related to Mishlei, this shiur also references Gemara Kesubos 22b, Rambam Hilchos Isurei Biah 13:14-18, and Teshuvos Rashbash #268.