Site Security issue

Is there a way to privatize my page, that only people on the site could see. Apparently my husband's ex found this page, took photos of me and my daughter (and the question What Is The Hardest Thing About Being A Mom? Along with my answer), along with our full names and my social media information and posted it on a bondage website. The Ex is then writing as me saying I think she would be a better wife and mother because I will kill myself. Then there is a contradiction, that I wouldn't give up being mother and I hope she and I can reconcile. This has been up for almost six months. I do enjoy being on this site but if I can't protect my information, I may have to leave.