It sounds like you really connected and that you experienced new T as being a good fit. This is a good thing

Now that I am home I haven't stopped thinking about her, how can my transference be that strong after only one session.

You deserve to feel good about connecting with a new T, I hope you can validate your own emotions and accept yourself as you are. You also did what is unthinkable by many on here (including me) in getting a new T, and you should feel really good about yourself. I hope you keep us posted.