If you want to compete with her man, then do it! You can read a book I wrote called Date Out of Your League. It’s for men who want to get that girl they haven’t been able to, and I think that just might be you! 🙂 You can download the book here: [url]http://www.askapril.com/relationship-dating-advice/think-and-date-like-a-man.html[/url]. I think it may help you find ways to win her over if you’re up for the challenge! 😀
If you don’t want to compete then understand that you’re putting yourself in a situation that is probably going to leave you feeling hurt. You’re already starting to feel anxious about the relationship, and that’s going to escalate as long as you know she’s got a boyfriend in addition to you.
The other thing you can do is to continue to spend time with her, but also date other women so that she’s not the only woman you’re focusing on. This may make you feel less vulnerable if she doesn’t want to be monogamous with you.