I have two but we are all out now. My best friend left right after high school and we are still best friends. I couldn't imagine severing our friendship simply because he chose not to be a Witness. Another friend of mine left not long after me and we stay in touch. When I left, it became obvious that the other person I considered a "best friend" growing up would not do the same for me. We got together less and less and he always steered the conversation toward "when are you coming back?"
The worst part about those conversations is how they give you that look of pity and sorrow and treat you like although you dedicated your life to being a Witness, you must have forgotten everything. So they repeat it for you as if you are somehow unaware of their tactics. It's amazing what fear will make people do.