It was worth it for me. I'm married to a man now (for the past 20+ years) but have had relationships with women (3 in fact). I told t at some point during my first year in therapy with her; I don't even remember now why I chose to tell her when I did. I ended up telling her all about J (one of the 3 women) who was my first love. And we continue to talk about her from time to time. My h knows, I told him before we got married actually that I had had relationships with women in the past. I didn't really realize that I am bisexual though until after I started therapy with current t, I'd pretty much hidden that part of myself too, even from myself - because my parents found out about one of the women and threatened to disown me, so I pushed down that part of myself and married a man - but once I realized I am bi I did tell my h. He took it well and it hasn't been an issue. Not that we ever talk about it. But, it's good to be able to talk about it so openly with t. It helps. Especially in the area of, if I meet a woman that I am attracted to, it's pretty much the same thing as being attracted to another man. The significance isn't any greater, I acknowledge it to myself and move on. But I get what you mean - now that I think about it I think maybe that's what caused me to tell her actually - I had met a woman at a drumming circle that I was attracted to and I was afraid of seeing her again because it hurt so much, the feelings that stirred in me were so huge. T and I talk about it often enough that when I saw her again, the feelings weren't a problem anymore. I wish you all the best and if you decide to tell your t, I hope that she is as compassionate and accepting as my t is about it.