Vag infection is not BV or STD or yeast. So is the bacteria coming from my partner? If it's not BV then it's not my own naturally occurring bacteria?

Vaginitis. You don't say what the causative agent of your vaginitis is, but if not trichomoniasis, chlamydia or gonorrhea it is unlikely it is sexually transmitted. Discuss this with your gynecologist. They are very knowledgeable and can guide you appropriately since they are in possession of more info than you are providing here. Good luck.