Update:

So, I did contact her letting her know that I did it but she didn't reply (busy). More recently we spoke about it and she was glad that I did. She had been concerned about me and wasn't surprised or phased by the self harm. We discussed it a bit and it seems that it was part of the agreement to contact her (and actually before I did it). She was glad I contacted her and now the goal is (stated more clearly and actually discussed) to try to contact her before I cut to see if a little encouragement helps. So, basicallyits all been worked out and yes I had actually agreed to contact her.