Badger, I'm very sorry--for everything. I'm so glad you're going to talk to a counselor. I hope he/she can help you deal with your feelings and fears. My guess is that you bf is not going to leave you for his friend's widow, but I also think it's going to be a while before he's able to fully reengage with you as he grieves and deals with his own depression. Your challenge is to take care of yourself in the meantime. Therapy will help immensely in that process, so stick with it as long as you can. Many hugs to you.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher