I've been close with this friend for about 6 years, although we've known each other longer through mutual friends. She's recently self-diagnosed herself as autistic and I can see that she does have some of the characteristics that fit that diagnosis. She messages me all the time and I've been finding it a bit much lately. She's always messaged a fair amount but it does seem to have become more frequent since she realised she's autistic. She's explained that she finds it hard to control the amount of messages as she feels like she has to get stuff out of her head so writes it down and sends it to me. It's a lot of stream-of-consciousness type messages, with other more serious stuff that needs a more thoughtful reply mixed in. It's quite draining to pick up my phone to find 6 messages from her that I then have to reply to (she gets upset if I miss one out) and then as soon as I've replied I'll get 2 or 3 more and on it goes. So I brought it up with her and said I was finding it a bit overwhelming and struggle to think of the appropriate responses all the time and she got incredibly upset. I feel terrible and like I've ruined the friendship. I understand that info-dumps and oversharing can be autism traits and I can completely understand that she was upset (as I would be if anyone raised an issue with me) but I kind of feel like my feelings are also important and need to be taken into account. Or AIBU and perhaps I'm just being incredibly insensitive to an uncontrollable autistic trait?? Arghh!! I know the damage is done but what should I do from here?