artrat wrote:
I don't want to spoil a possible friendship by referring to this person as a friend.
Most NTs expect you to know that they are your friends without telling you.
I used to see everyone I met as either just an acquaintance, or as a best friend. I had to learn to develop a middle ground to allow my relationships with others to develop more slowly in my mind.
A general rule of thumb is to reserve referencing her as a friend until she uses the nomenclature to describe you as her friend, and even then you still don't have to use it. Instead you can refer to her as how you know for sure your relationship with her exists, like "this is my classmate," or simply, "This is [Name]. She and I have a class together."
Later, if you find she is still willing to spend time hanging out after the class has ended, you can still reference the relationship level that you know for sure exists. For example, "[Name] is someone I met in my class, and we enjoy hanging out on occasion to discuss [topics]."
Note: Make sure [topics] is something that she is okay with you mentioning publicly. Otherwise you can be non-specific and just say that you "discuss topics of interest" without going into details. If you are unsure, then keep it general rather than specific.
I have a friend that I now call a friend, but I've known her for a couple of years now and our interactions have grown from maybe seeing each other a couple times a year at social gatherings to us now meeting for dinner a couple time a month and chatting a lot online. I was very hesitant until she referred to me to someone else as, "my buddy." I still waited a while before I felt comfortable enough to refer to her as my friend, even though I have thought of her as a friend for a while, and she may have thought of us as friends even longer.
Err on the side of caution and just enjoy the time you do spend with her.