I Have a Crush

Depression sucks!
And I am concerned!

A few months ago, I decided to start some conversation on Facebook and asked my crush how her day was. She told me it was alright and I decided to say why not Good? and she said it was probably because of her depression. So I asked if she wanted to talk about it just so I can give advice. She said she doesn't want to talk about it so I respected her words. I gave her space in case if she needs it after that. She has a backstory of being bullied. She told me this a few months before she told me she has depression, and she knew I am supportive. Just a few minutes ago, I asked how her summer is going so far, she's doing great!

I have a question! What should I do? I want to bring it up and ask if she is doing okay, but I am not sure if I should.