Reoccurring BV

Lauren

Whenever I have unprotected sex with the same guy I get BV. I didn’t have sex with him for over a year and the first time I did again I got it immediately. We didn’t wear a condom but he did pull out. Any suggestions?? I read once to take Vitamin D and Probiotic, but I really want to get to the bottom of it. My previous partner it never happened... Could it be him?