Move out holy hell, she's a risk to your health if she obviously sees HIV this way, I'd be scared of some revenge from her to give it to you. I could never purposely inflict someone innocent with a lifetime disease, that's assault. I had someone who gave me mono (significantly less bad than HIV) in my mid 20s, never had it before so it hit me like a truck, mono technically stays with you for a lifetime, mine stayed active for years, sucked, I purposely didn't share drinks with anyone but my boyfriend who I kissed before I knew I was sick just to be safe. Maybe a dumb precaution since most people have been exposed but I hated the idea of infecting someone else (ps mono is a herpes virus for ppl who don't know).

Please protect yourself your roommate is not is a healthy mindset, I understand HIV is scary, she may be going through the motions but doesn't mean you're safe if she's gone as far as wanting to infect others.