ADHD caused breakup, in fear of not knowing what to do

Don't take this the wrong way, but from what it sounds like she doesn't plan on getting back together. Just from personal experience, I also had a relationship with someone who I told I would marry someday. They broke up with me a couple months later. But they said the same thing- that they still wanted to be friends, but I haven't heard from them in almost a year. It sucks, and it still hasn't gotten better. I know that some things aren't meant to be fixed, but if this was a quick decision for her, maybe she didn't love in the first place. And I'm so sorry- it feels awful, I know. I know it's one of the worst pains in the world. I'm really sorry you're going through this, you deserve better. I won't tell you "move on" or "there are other fish in the sea" because while those can be important, it's not helpful right now. Not in this slightest.