Rude or no? If yes please explain why.

Okay so I've been living with my husband's mom with my husband which its me my husband his little step sister, mom and his step dad. Anyways. We have our own bathroom which has all my stuff etc. Like shampoo body wash all that crap lol. I noticed my body wash was running out quickly and my shampoo and conditioner? Well I just found out WHY. His little step sister has been using it to bath her puppy with it and wash her bratz and barbies hairs with it? I thought all along it was my husband lying to me and using it lol. So I want to tell him that his little sister should respect my stuff, I'm not grabbing her or her mom's things and using it for me or my dog (if I had one). BUT HERES THE THING his mom always bitches and fights with him when he complains to his mom about her rude daughter and blames it on me. ALSO. I have wic. It's help from the government with food for me and the baby ME AND THE BABY his rude mom and little sister are always eating or drinking all the milk and things wic gives ME AND THE BABY. So I started putting my wic things in our fridge in the garage and now his mom is being a bitch to me ever since she saw me put the things in our fridge. I told my husband nicely this was for me and the baby not for his mom and little sister. They literally waste a whole gallon of milk in a day! or they eat all my fruits and yogurt and other healthy stuff for me and my growing baby. He thinks I'm being over dramatic or have hate towards his mom and little sister (which I do lol) they hate me also lol pretty obvious. And his little sister is just plain rude she just comes in our room and if I'm eating skittles (like today) she just grabs it and eats all.... like wtf? ask? Don't just open the door and feel free to invite yourself in and eat what I'm eating?

Am I being rude or what???? Cause they always say I'm being rude? I'm just tired! I can't live here no more! I hate being stuck somewhere where I'm not wanted and always get started up and down or judged.

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