If your male sexual partner is unconvinced or unaware that he may have bacterial vaginosis-related bacteria and biofilm on and in his penis and urethra, and be spreading it around, he should read this.
Evidence is plentiful that oral antibiotics alone don’t work on male partners of women with BV to stop the spread.
Recommended reading is Killing BV: Penis Treatment Guide, which includes a full treatment program, with its own support section.