Sister making me mad over MY baby

My sister has been pissing me off when it comes to my child.

My daughter is 7 weeks old and has a fairly unique name. My sister hates the name and refuses to call her by it or say the name at all. She won’t even call her by the nickname we’ve given her, which is just the first part of her name. Instead she calls her “Smalls” (from the sandlot) normally this wouldn’t bother me but just the fact that she absolutely REFUSES to say my daughters actual name pisses me off.

Today we had our thanksgiving dinner at her house. Since my daughter is so young there was family there that hadn’t seen her yet, and when they asked my daughters name after I told them my sister said,” Don’t call her that, her name is Smalls.”

When my nanna asked what my husband and I call her my sister said,” we call her smalls .”

On top of this she refuses to listen when I tell her not to do something when it comes to my child. For instance tonight she was joking about wanting to give my baby mashed potatoes, I told her she better not. Few minutes later I turn around and she’s given her some, granted it wasn’t really anything but I said no.

Then she talked about how next month she’ll be eating real food and having cereal in her bottle. I tried explaining that she won’t be eating real food till 6 months and baby cereal isn’t actually good for babies and she completely disregarded what I was saying.

I’m so ready to snap on her and everyone could tell; including my husband who didn’t even show up till the very end due to work.