When someone expresses that they are not interested in communicating again, it's important to respect their boundaries and wishes. Pushing for further communication or trying to convince them to get back together may not be helpful and could potentially push them further away.
If you truly care about this person, the best approach is to show understanding and respect for their feelings. Here's a suggested reply:
"Thank you for being honest with me. I understand and respect your feelings about not wanting to communicate again. I want you to know that I still care about you and have feelings for you, but I also understand that we need to respect each other's decisions. If you ever change your mind or want to talk, know that I'm here. Until then, I'll give you the space you need. Take care."
This response acknowledges their feelings, shows that you are mature enough to accept their decision, and leaves the door open for the possibility of future communication if they choose to initiate it. It's essential to focus on your own well-being during this time and allow yourself to heal from the breakup. Sometimes, giving space and time can lead to a better outcome, whether it's getting back together in the future or finding happiness apart.