I get it. Also an empath here. I have experienced something similar which I have ended. Your friend must be some amazing friend. Yet, he may have other options for getting out, and/or finding another place, if it weighs on you. I hope you don't feel guilt if you discuss this. I could relate so much. Wow. How muh can I couple do this when it weighs on one? Can you be friends in another way? Just some thoughts.... Don't wait until something may turn the friendship sour or explode...is another warning.