Can i reinfect myself with bv? my partner and i are in a monogamous relationship and dont use condoms, why is my vagina so sensitive with bacteria?

Repeat BV: Bacterial vaginosis is not classified as a true "sexually acquired infection", as other common organisms can be acquired through hand contact with objects exposed to public areas, and then genital transmission by normal wiping after voiding or a bowel movement. It is important to wash hands prior to bathroom usage to avoid the preceding.