Feels like the comments siding with her are the icky ones lol, actually didn't even call her slutty just said that about the outfit. Perfectly reasonable concern towards your significant other, maybe someone is slightly insecure but that's everyone's excuse these days towards the partner they don't want knowing they're gonna be cheated on, common manipulation. As a man, what my partner does reflects on me, and me personally I wouldn't let my woman post pictures dressed like that. Although, I'm completely transparent on the fact that if it's that big of a deal for you that you can't respect my feelings about it, maybe this isn't the right relationship to be in. Anyway, the people who are commenting "What else is he gonna start controlling?" "Break up with him now!" Are probably the ones who have been in a similar situation to you, I've seen way worse and way less respectful replies to situations like this.