I’ve also been posting less after managing to upset someone. We can have a club. The shy posters club.

Maybe you have felt platonic towards her because of her past sexual assault? As in wanting to protect her from your sexual interest? It might be too late now but if so the thing to do would be to talk about it with her in a very open manner to see if the issue could be overcome, your fear of harming her and whatever fear she might have.