I highly suggest you read Eckhart Tolle's "
Power of Now" and "
A New Earth." Oprah is also doing a 10-week seminar with Tolle about "A New Earth." You can watch all the archived webinars for free
here (you do have to register).
I also suggest you read
this page about Sedona's Method's suggestions on surrender.
I also suggest any book by Byron Katie - check out her
website, which also has videos of her showing "The Work."
Why am I suggesting these resources? Because you need to develop "space" between your thoughts and yourself. This space will help you go beyond your current mindset.
If you go through these resources and really let them soak in - you will realize this situation has nothing to do with your bf or the relationship. It has everything to do with YOU.