My two thoughts after reading this:

#1) I don't understand yet the tone of your posts. You know about hormones, your are TG, but you write as if you are totally clueless about all the struggles involved. Sorry, but all this is confusing.
#2) After #1, I'm not sure if I can believe the entire story, but if all this is true, your boyfriend might be using you and your experience to understand his transgenderism or to help him transition, or to get clothes... I'd just recommend you to be careful.