She may feel that she did the most proactive, caring thing by calling 9-1-1 when everyone else was just being angry with you. Her actions show concern, not judgement.

I think your group would be a much safer place if you decided to address this and what the expectations are when someone makes a benign statement like you did. It wasn't about suicide, it was about what was going on with you at that moment that felt so overwhelming and unbearable. What you needed was support in that, not judgement for being in pain. Suicidal thoughts can be seen as a way of saying "I am in *this much* pain"... Maybe you could lead your group to a discussion of this and it could include how something like this could be handled in the future. Learning from life's lessons is the best.

So, if she feels she acted in the most caring, supportive, proactive way by getting emergency help when she felt it was so important, she may respond in that way to your email. She may feel offended that her caring gesture isn't seen that way. She may feel fine in her own thoughts, that she did the right thing by her standards, and that others have other separate thoughts about what she did that are about them, and not about her. So, you and she have separate thoughts and may disagree on this, and that's okay. You both can feel like you did the right thing, because the right thing is defined by each of you separately.