I feel like I’m suffocating and no one cares. ADVICE?!

I am in a living situation where I live and work with seven other people in one little flat. It was not my choice who I would be here with. I don’t get along well with people because of social anxiety, and this group is particularly bad. Luckily, I found my rock: let’s call her Jane. We instantly connected and I’ve been here for her tons of times. She always told me how glad she was that I was her support.
But over the last weeks, she increasingly started to behave differently. She would ask me things and mid answer turn to someone else or get up and leave. She would not listen when I was talking. This led to me being really insecure and easily angered by the others. I told her about my social anxiety and that I had an issue that is not going well with the group. Didn’t want to tell her it was her as I might just be overthinking. She knows that I homage trouble joining the group if I feel uncomfortable. Yet, when I try to talk to her, she’s not paying any attention to my words or feelings and just brushes me off.

I feel like my voice is not being heard.
She personally told me that she hates to be disrespected like that, but now she’s giving me the same feeling. I have very tough family issues but I feel unable to talk to her about it because of our situation.
What do I do? I really like her but she’s acting as if nothing happened.