My gf breath STINKS! Its as if she farts from her mouth. Can you please help?

I'm very close to breaking up with ma girl. Its that BAD. We could be watching a movie and omcebshe lean in for a kiss I say to myself, "Hell no bitch! Not with that stinky breath." She's been feeling down lately because I've been avoiding her kisses and when I do kiss her I have a disgusted look in my face that she has to ask, "is everything okay?" I want to yell asst her and tell her, "No, your fucking breath stinks. Have you've been brushing correctly? Eating bad combination food like oatmeal with soup and shit?" When we have sex her breath become the mist like in that movie, I feel like grabbing a pillow and suffocating her. Its smells like egg, onion, coffee, 2 week garbage. Idl. what da fuck that shit smells like.
Once we were at the store and she was speaking to a guy, and the guy was trying to hit on her. When he got close to her, his nose twitched and he was like, "yea" and walked the fuck away from her. I could not blame him.
My gf breath STINKS! Its as if she farts from her mouth. Can you please help?
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