Questions: Break Up & Divorce

This is the first serious relationship I had and it ended about a month ago. She had always been very nice and generous with me from the day we met in person (we live in different states). We never intended to date but one thing lead to another. Two months after that she broke up with me facing away from me and crying. We talked for three or so hours afterwards. She gave a variety of reasons, none of them directly blaming me and talked about how much she relied on me and cares about me since we've met.

She said she wanted to remain friends and I did too. She's been miserable the past few weeks on top of her depression Recently whenever I think of her I go through a cycle of happiness, sadness/bitterness, guilt for feeling that way for someone who did so much for me even as a friend, and weakness for not having better control of my emotions. I feel like I still owe her my friendship because she's done so much for me. Do I?

I was seeing this girl for a year. We had some trouble spots, and we were still learning how to be in a relationship with each other.
Things were really good the month leading up to our break up. We talked so much, we supported each other, the sex was good, and I thought we were in a good place.
We revisited some things that came up from before we agreed to be exclusive, which hadn't been more than 4 months. I let slip that I was in love with her.
She asked for space and after a week I asked where we were and she said she wanted our relationship to end. She didn't think she could love me and that how I loved her was too much. She sited all these boundaries I crossed she never told me and she didn't have answers to questions I had. It was weird and sudden and the first time any of this had come up.
It's been two weeks, and I haven't heard from her. I tried to save it but she was in her head.

Is it likely after some time she'd reach out to me?

I had an ex from years ago reach out to get back together after 7 months being broken up. She went after me and it wasn't expected. But that one we had problems we didn't work on and it blew up. But she reached out to me.

You break up with your ex and block his/her number and all social media etc. 3 days later they message you on email loool. What would you do?