Dear Abby: I’m housemates with my husband’s former mistress who ‘lives like a pig’

A woman is seeking guidance from Dear Abby regarding her current living situation. She is sharing a home with her husband's former mistress, whom she describes as living like a pig. Furthermore, the woman has discovered that she is now paying the bills for the former mistress. Due to these circumstances, she is questioning whether she should contact a lawyer to initiate divorce proceedings or simply let the matter go to avoid further conflict.