I do think you need to talk about it. My T. knows about my transference towards her but not the full extent. I leak out pieces at a time. You could start with him that you have feelings you need to share but are nervous. He will probably have an idea and know how to guide you.
I relate to how you feel. I went to eat with friends at lunch today and saw my T's car as I left. I was so thankful I didn't run into her. I don't want to see her with her friends and have jealousy take over me until my next session.