I talked with my boss, my friend - extensively about how I was feeling and just pretty much told her everything.
(God love her for putting up with me...)
I told her about my concerns that our work relationship was ruining our friendship. I told her that I felt she had made it clear that the job was more important than our friendship. Among many, many other things. I admit that I am not a perfect employee - I have my faults.
And I'm happy to report that I over-reacted. I allowed the stress of working in this type of an environment to build up on me - and so had she - and we both just kind of let it get to us. Working in our line of work can be rather thankless and stressful. The good news is that we've grown from this, talked it through and will do better as we move forward.
So instead of letting things build up again - and literally make both of us physically ill - we're going to stand together instead of apart. And I didn't lose my best friend. That's the best part! Working with (and in my case, for) a good friend is a challenge - but it can be done. My biggest challenge was in trying to express to her my feelings without hurting her's. I hope that I have successfully done this now and I believe that I have.
Now for some music!