I want to say hello and welcome to the forum, I'm glad you posted. I was in a very similar position. My husband and I started seeing his therapist for marital counseling and while working with him together I developed a strong attachment. I did go to him and tell him how I felt (terrified I would be sent away) but instead it led to my working with him individually. I was very blessed in that I have a very understanding husband, so I was very open with him and told him how I felt right after I told our T and we were all able to discuss it when we needed to. This worked for us because my T is a boundary ninja and did a really good job keeping the relationship safe and theraputic and I think I did a pretty good job, despite how intense and painful it could get, of keeping my focus on healing. But examining the relationship between us and my feelings for my T were key to my healing. It turned out really well. My marriage is in very good shape and we've left both marital and individual counseling. I would write more but I'm fighting with a bad breathing problem and bronchitis at the moment and am not firing on all cylinders.
But I do want you to know there's hope. I have done a lot of posting, if you look especially at the Personal Stories section that's where I start most of my threads. Hopefully reading some of that might help in the meantime. I'm planning on getting back on the board as soon as I'm well. I just wanted to say hi.
AG