Ex Wife Keeps Crazy Texting Me. Is There Anything I Can Do?

I have been divorced for seven days. There is a clause in our separation agreement to not contact the other person unless it is related to our children. It also states not to send negative/harassing messages to the other party.

The day of our divorce she sent me a picture of her and her friends at the club all flipping me off. Classless but who cares? What is bothering me is that every other day she sends me walls of texts. Some under the pretense of giving me updates on our kids but others are just nuts. She seems to have created a fantasy that I have a second family. She sends me texts saying I'm a cheater (We got a divorce because she was unfaithful. I wasn't.) Texts saying I hope your happy with your new family. It's nuts and I honestly don't know what to do. My only responses have been to ask her to stop and ignoring her. I feel like I can never escape her. Do I have any legal recourse to get this to stop?