For background she is a very old friend who lives in another country. We went through a lot together. Lived together in the past. I haven’t seen her for two years and she now wants to visit. She is a passionate anitivaxxer. I have a vulnerable family member. I have a massive problem with the fact she spreads misinformation on a daily basis on social media from dubious sources. I feel like I can’t face seeing her. AIBU?