I am so sorry.
Ask the doctor's office/hospital, or call local VNA to look for support groups for family of cancer patients. (also check out the forums here)
Once the biopsy results are in, the doctor should have a meeting with bf (&you) to review the results and discuss options. Ask all the questions you have/want. Always ask questions and encourage him to.
How is he taking this news? You are in such a difficult place right now, take it as slow, in the moment, as you can. Let us know how it goes.