I met a woman last year through a common volunteering activity. We hit it off and quickly became friends.
Since we met we've done volunteering duties together, we've met for coffee, for lunch, for dinner (sometimes alone, sometimes with other friends). In between meetings we've exchanged messages fairly frequently and have discovered we have a lot in common.
So mid April I sent her a message - very normal kind of message for us, asking what she'd been up to and catching up on what's been happening etc. Didn't hear anything for a few days but that's been fairly normal too.
Sent her another message three or four days after that, asking how she was. No reply so after a week I just messaged saying I hoped she was ok, but if not was there something I could do.
Again I didn't hear anything for a week and then got a short message saying "I'm ok thanks". I replied saying I was pleased to hear that and had I done something to upset her?
That was last week. I haven't heard anything and I know I asked "now what?" in my thread title, but I won't message again. I've clearly done something to really upset or anger her - but I honestly have absolutely no idea what it can be. For context, we're in our 50's.