<human>: Provide a brief overview of the text.

My boyfriend and I have been together officially for almost ten months but have been dating for nearly a year and a half. He's on good terms with his exes, but one of his exes really gets under my skin.

When they dated (2 years ago), she was a trainwreck. Pretty sure she still is. She hooked up with his friends and brother before she and my bf dated, and she cheated on him. She's extremely attractive which pokes at my insecurity, and still very much clings to keep my bf in her life. She'll post old photos of them when they were together on FB, she texts him often (he doesn't engage very much), and her family members even text him for tech advice, etc.

I've told him I have a really bad feeling about her and that his friendship with her makes me uncomfortable. His other exes, I'm okay with. He even slept with one of them when we were on a break and I'm very neutral about her. But THIS girl makes me feel crazy. I've started snooping through his texts and reading what they talk about, which is something I abhor in relationships.

I've talked to him and told him I don't want to tell him to stop being friends with her, but their relationship makes me very paranoid and insecure. He assures me nothing romantic is happening (and based on what I've read-- nothing is) but I don't trust HER and it bothers me how attractive she is. I know this is my own insecurity eating away at everything, and I try not to get jealous, but every time his phone lights up and her name is there, it makes me feel physically ill.

How do I cope with this relationship he has with his ex? She lives 1000 miles away so I KNOW she's not an immediate threat but I just want her totally out of this life I'm building with him. We talk about our future all the time and having her looming over it in the back of my mind prevents me from being truly comfortable.
<bot>: My bf's unstable ex is still in his life, but not a threat to our relationship. However, she makes me extremely jealous and insecure. How can I get over my negative feelings and accept their (confusing) friendship?