Hey, I agree with Krazibean, it's not a fun thing to go through but it happens to a lot of people and especially, apparently, with the female/female client/therapist relationship - maybe because of the whole mother/daughter bond?.

It is best to stay with this therapist and work through it with her. It's important that you work through the kinds of reactions you have in the relationship with her so that you can function better in other relationships in "the real world". Of course, if your therapist won't/can't work through the feelings with you and you aren't making any progress then its not the best thing to stay in that kind of state in the long term she will be aware of this and should be professional enough to refer you to someone else.

I know it feels like you are going crazy at the time but there are a lot of people who have experienced similar experiences and lived to tell the tale - maybe have a look at Consuming psychotherapy by ann france or Folie a Deux by rosie alexander.

Hope this helps

BTC