Husbands ex wife 😒

My husband and I got engaged let July and just got married this January. He has an ex wife and an 8 year old daughter. They've been divorced for 7 years. I have a serious problem with her texting him about things that have nothing to do with their daughter. She always calls him for favors like when she locks her keys in her car.. Etc. I put up with a lot, but since we got married it's only gotten worse. Just yesterday she sent him a picture of her bare back because she got a new tattoo and asked him if he liked it. I snapped. He didn't even text her back but I'm so uncomfortable with the fact that she feels like it's okay to do this. I told him I needed him to text her and tell her not to contact him unless it has something to do with their daughter and he didn't even hesitate or think twice about it. I'm not necessarily worried about him.. I just don't trust her intentions. Please tell me I'm not crazy and I'm not alone in  this. I'm tired of people telling me to 'let it go' and 'don't let her win'. She needs to stop!Â