I quite like this manga myself, but it certainly is funny that he thinks she doesn't know when she RUBBED A RICE BALL IN HER ARMPIT IN FRONT OF HIM AND THEN GAVE IT TO HIM FOR HIM TO EAT.
And yeah, uh, Naru, bitch, if you're gonna call him gross I'd appreciate a bit more self-loathing from your side, you fucking hypocrite.