very strong Fishy smell right after sex - BV

Lovely

hi, I normally don’t post much but wanted feedback on this situation to help me cope and move forward. I recently was having sex with a guy I have been with for over a year sexually and for the very first time there was a very strong unpleasant fishy after smell that lingered. it was honestly the most embarrassing thing to ever happen to me and didn’t know how to react afterwards, he assumed it was my period coming on but right then and there I knew it was BV. I later told that it was, shame really took over me, I resumed to ask him if he was turned off and would he still have sex with me #complicatedsituationship smh. I haven’t heard much from him since almost a month now and want to know how to go about it and how to cope with this happening during sex...