Hi! I suggest you bite the bullet and bring the topic up--maybe something like, "I know I mentioned I am a lesbian--and I have to admit I'm having some romantic feelings toward you" and see what she says.

I doubt she would be spreading out the sessions merely because she sees some attraction. I'm sure she has dealt with this issue with men patients, too. Not too many people see their therapists every week unless they are rather in a crisis state or in a shaky situation. I would think her suggesting it is likely a good sign---she is thinking you are doing better....