Hello-
welcome here.. yay a new person
I think it's great that you are considering therapy because hey, it's good to have the insight and thought that maybe I have an issue here.
In terms of your friend, I do believe that friends should tell friends the truth but sometimes it's the way we put things that can be hard. WHat you said could very well be true but she could also not be ready to hear that. That happens in therapy all of the time and this isn't even a theraputic situation.. at least not a professional one!
Possibly, you can go to her and applogize or even write her a letter telling her why you said that, thought that.. and I do think you framed it in an honest way.. you may not like this... you said all of these things.... but she didn't like it maybe because it hit to close to home.. it made her feel blamed somehow.... she wasn't ready... it wasn't gentle..maybe she wanted more comfort....
who really knows??
Obviously, you don't feel like you were brutal and you probably weren't but with human interaction, it is always difficult.
Maybe let her cool down awhile and try to talk to her more about it or i dont know... .let's see what others say here...