I am going to ask you a question, please don't take it defensively.
Did you send that text because you were worried about her, or because you were worried about you?
Telling her you are there to listen if she needed to talk was great. Shows you were being considerate of her, and your were opening the door if she wanted to share.
But when you pressed with that text, it was not giving much space. I get it, that feeling worrying if you are the cause for distance can be super uncomfortable. But she really isn't in a place to feel more pressure.
Now be the lighthouse. Let her have her space and she knows the door is open when she's ready to discuss it.
