He makes my V-J-J musty ?!

I’ve had sex with two people before. My long term ex bf and a new guy. I’ve had sex with this new guy only twice and on both occasions I got a musty smell coming from my vagina hole about one or two days after the act. We used condoms both times so why is this happening ? Coincidence or nah ?

And how come I dnt remember this happening w my bf who I also used the same brand condoms with ?

Also his penis is so damn clean even cleaner than my bfs so that’s why I’m even more confused