Annoying ass fiance

Brashay
Does anyone else get super pissed off when your SO eats or drinks something that you were saving? Especially if they don't ask first they just do it? And then act like it's nothing, maybe I'm overreacting cause I'm pmsing but it's literally the most annoying thing ever. Or they do something after you tell them not to it's almost like my SO is my SON!!!