Boyfriends Ex Girlfriend ( Rant and Advice? )

GF

My boyfriend and I have been dating for two year, and I can honestly say we are happier together than we have ever been with any other person.

That being said, we have had issues with one of his exes continuing to try and be in his life. It has been a problem throughout the duration of our relationship, and though I'm not as upset as I used to be, I'd like to help my boyfriend be rid of someone who causes stress in his life, and I want to help her realize he has moved on in the nicest way that I can..

Ill give a little background into our relationship with his Ex. We'll call her Sarah for the time being.

Now, I first met Sarah when I went to my boyfriends prom at his school. I didn't go to the same school they did, so I was a little confused when she came up to me and claimed to be best friends with my boyfriend... Because he had never mentioned it. Throughout the entire night, she questioned our relationship. "Why would you date her?" "What makes her so special?" She would cut in while we tried to dance or have a conversation. Needless to say, I felt uncomfortable with her questioning when my boyfriend swore he tries to avoid her at all cost..

Several days later, at the place where my boyfriend and I work, she shows up and tries to get his attention. She asks for rods from him, tries to plan times for them to go out, making us both feel uncomfortable. This goes on for several weeks, multiple occasions gas my boyfriend told her he simply doesnt want to be a part of her life. He doesnt want any sort of relationship with her, he has moved on.

She continues to call, text and such, and at this point I'm really irritated. But I also feel sorta sorry for her, that she's spending so much time trying to get the attention of someone she still likes a lot and he has moved on..

She went off to the Air Force and he finally blocked her number

Tonight, he texted me saying she came back for a visit and came to his work again. He told me he started crying at work because of it. Why can't some girls just take a hint?

This is my rant, I left a lot out but... Am I wrong to feel irritated, uncomfortable..?