<human>: My GF is great in many ways. She's caring, she's thoughtful, she's fun, she's kind --but she also has a tendency to be manipulative and passive-aggressive. For example, last week I didn't hear from her for a day and a half. That's unusual, as we usually talk multiple times a day. I confronted her, and she told me that she was annoyed by something I did earlier that week. She's done that before.

Not exactly healthy behavior, I realize.

We're on a break right now, and it ends later this week... I don't want to go back to the way things were, but I want to give it another shot. I know I can't *change* her, but I want to foster better communication, and I want to establish better boundaries. Any tips for doing that??

Could you distill the essence of the text into 1-3 sentences?
<bot>: I want to move forward in my relationship with my GF without making it seem like I want to change her. Any techniques/advice?