Why does my sister's partner boss me around all the time?

You need to say something. Tell him that he makes you angry and tell him you aren’t his responsibility. He could just be trying to look out for you though. If you don’t say anything about the way he bothers you he will keep doing it…

Talk to your sister, maybe she’ll talk to him about it. If not, ask him why. You need to say something.

I would confront him infront of your sister about it, it may cause one heck of a scene but your voice should be heard, hes not your dad! So u need to let him know, if he tells u not to do something but u know u can, do it anyway and if he places his hands on u. Law suit!! Seriously ur a human being and u need to be treated like one not some kind of pet!! :)

I agree with majority of others here..Say something to him,but make sure you have someone else standing by so if things go “south” you can bail..He has no right putting his nose in your business,talking with your sister may or may not go well,if she’s happy with him she may choose his side and not your side..Although blood is thicker than water..When you do confront him make sure you have someone listening to the conversation as it could get ‘twisted’ by him saying more than he should..Just stand up to him and basically tell him to you aren’t going to listen to his b.s…He is not your father and doesn’t need to know a darn thing..Happened to me sweetie..I got upset and asked the person if they wanted to know how many times I went to the bathroom that day..this person was trying to keep tabs on me:He finally shut the heck up&left me alone*Good luck..