She Keeps Showing Up

For context: I had this, what I thought was a friend, we met because our husbands (military) work together. We hit it off quickly and spent a lot of time together for a couple months until I was injured and broke my leg. While I was down from surgery she would come over and act like a friend. She even offered to help my husband walk our dogs. Well he came back from that walk and was really cold towards me. And it wasn’t until a day or so later (and experiencing this sudden distance) that he let me know that this friend told him that I would go through his phone (which I didn’t) and that he could do better than me because of my weight (I’m plus and he’s not). She happened to have another friend who blew my husband off before he and I met and apparently she was interested again? Anyway, I immediately blocked her on everything and began to rework my marriage. He and I spent the next day talking it out and figuring out what happened and out emotions. He asked me about the looking through his phone and I told him that that wasn’t the relationship we have and that if either of us are concerned about phone contents then we are in the wrong relationship. I asked him if he wanted to break up, because I felt so betrayed by her and him for amusing the things she said that I felt that I deserved better, again while broken in the bed from surgery. While he and I were talking she was blowing the both of us up, which we were ignoring, “What’s wrong? Where are you guys? Why aren’t you talking to me? Did I do something wrong?” She even showed up at the house hysterical. I told her that we were no longer friends, and that under no circumstances was it appropriate to talk to my husband the way she did. That she crossed major boundaries with my spouse. Her husband was deployed at the time and wasn’t there to be apart of this, he later told my husband that it wouldn’t have happened if he were home. However, I do not and cannot trust her. My issue is she shows up in everything I try to do. Base functions, not base functions. She markets herself as someone fun who needs friends, the same stuff she told me before proving how “good” of a friend she is. How do I go to these things and ignore the chick who told my husband to leave me because I’m fat? I don’t want to appear weak but I really don’t want her around me, but I can’t seem to do anything without her showing up!