Boyfriend has terrible hygiene. Am I overreacting?

My boyfriend goes 3-5 days without showering or brushing his teeth and I can’t take it anymore. I shower and brush my teeth twice a day, just because I like to be clean. I don’t think he needs to follow those same habits but he should clean his body and mouth at least once a day. He already has bad breath and his lack or brushing is making it worse.

He wears dirty clothes instead of clean ones and I’m starting to hate sharing a bed with him every night. He’s completely grossing me out. I also cannot stand his lack of table manners (eating loudly, licking his fingers and plate). I feel like I’m raising a child and hate to have to keep telling him what to do.

He’s a sweet man and I love him but this is stressing me out.
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We recently moved in together so this has all come as a shocker to me. I’m going to have to have a serious conversation with him or I’m moving out and ending the relationship
Boyfriend has terrible hygiene. Am I overreacting?
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