very good, squiggle, very good! I am so proud of you for being so open, really talking with her, and for allowing yourself to be physically AND emotionally closer to her. You know what, it really is OK to become attached....attachment/trust helps you work deeper on deeper issues, you can really go emotionally deeper if you are emotionally closer. I do know this to be true......even if attachment can hurt at times, trust can be hard, it's still worth it and helpful (both the hurtful and helpful aspects have been so true for me!)
And I see what she means about the controlling factor......you're using your voice in a way that you choose, through writing. You're choosing when to share that, not only in session but between....you're in control of that choice and when you share. You're choosing to ask her for a response, in that way you are asking for/having some control over your therapy too, with her, in a sense. It's not bad control, not being controlling in a negative way.....but having a say in your therapy and in the process! Maybe this doesn't make sense, my head is fuzzy from meds again.....
But I am glad you seem to have it clear with her that email is accepted, that she will respond, and it's something mutual between the 2 of you that you both agree is good for your therapy and boundaries are set to keep it under control!