I'm angry that my so keeps telling me I'm autistic
Are they continuously saying that?
Yea, and it is really getting on my nerves.
You should tell them to stop. I get why you would be mad about that. It is wrong that they keep calling you names.
Fuck no, I'm not never going to admit that I'm autistic
If you partner is making you feel bad with the name calling then you have a right to be upset. If they do not stop after you ask them to it may be time for you to find a different partner that cares more about your feelings.