Can anyone tell me why

My fiances mouth and breath smelled like vagina the other day? He kept going to kiss me and I almost gagged it smelled like someone's vag and I didn't want to ask cause what if it was a bad breath day?but then I got to thinking cause it smelled rough yall.. it was all around his mouth and it didn't smell like a dirty one just the smell of vagina... I didn't say he for sure did something which is why I didnt say anything to him but it smelled like it to me.. maybe it was food idk. Some of yall have some rude ass comments lmao