When responding to your ex's message, it's essential to be respectful and understanding of her feelings, even if they may not align with your own. Here's a suggested reply:
"Thank you for your honesty. I understand that you might not be comfortable with the idea of communicating again, and I respect your feelings. I apologize if reaching out after 30 days was too soon or made you uncomfortable.
While I still have feelings for you and would like to explore the possibility of getting back together, I also want to prioritize your emotions and give you the space you need. If you ever change your mind or feel ready to talk, please know that I am here to listen. Until then, I will respect your decision and won't reach out again.
Take care of yourself, and I wish you all the best."
Remember, it's crucial to give her space and time to process her feelings. Pressuring her or insisting on communication may push her further away. Show her that you respect her boundaries and that you genuinely care about her well-being. Ultimately, whether the two of you reconcile or not, showing maturity and understanding will leave a positive impression.