Update: My relationship with my sister has improved a lot. We had a talk about what I found to be problematic about her behaviour. She was surprisingly receptive to it. Perhaps because she is making progress in therapy. But I believe a lot of it was because of you guys and your very constructive advice. Thanks to you I could put a finger on the exact problem, rather than talking about vague irritations, which probably came across to her as accusatory. I recently spent a whole weekend with her without feeling the least bit suffocated. Just like old times.

Again, thank you very much for giving me your time and thought.