<human>: Could you distill the essence of the text into 1-3 sentences?

Greetings r/relationship_advice, 

I've been dating this girl for about about two months. Things moved rather quickly sexually. We both admitted later that we were trying to go slowly, but didn't think the other was interested when we did. A couple weeks later, I asked her if she wanted it to be official. She said  yes. 

Now, we both have histories. Self-destructive and plenty of baggage on both ends. We shared some and bonded over it. She began taking accutane. I know this drug can affect moods. We're great despite this. A week or so ago, she mentions that she might be pulling away because she "get like that sometimes."  

This past weekend, I have show. She can't make it, but it makes sense because she has work. Then, I don't hear from her for almost two days. I sent a text. The next day I called. Nothing. Finally, on facebook messenger I see her. She says she's super busy and thinking about "a lot...partly us...part of a lot of other things." She says she needs time to "clear her head." 

I've offered to be here if she needs me. Told her I'd text or call to check in, but it feels like I'm already out the door. I'm at a loss for what to do. I feel like there's nothing I can do but watch this end badly.
<bot>: Things were going great. Girlfriend started accutane. Recently, related or not, she started pulling away and needs to "clear her head." What can I do?