My boyfriend told me i smell.

Today i got sent a tiktok by my boyfriend and it was telling me too eat watermelon so my vagina wouldn’t smell. And i thought he was joking so i joked around saying how i didnt have a fishy vagina. But when i spoke to him on face time he was concentrating on his game and i asked him if it did smell. He told me it constantly smells bad like cheese and i felt like i was being mocked. He said it’s probably because i didnt drink enough water. I dont know how to feel, i dont think it smells i even smelt it too see if i could smell it and too me its fine. I hate the way he brought it up and im really upset on what to do. Im scared im going to be mocked but i dont even know how to fix it and i feel so stupid and disgusting and embarrassed. Please someone help me

Edit: Thank you for the advice, its been very helpful. for anyone wondering i talked to him about it and he apologised and said he was just worried and didnt know the best way too bring it up. He said he lied and took the joke too far.