I sent a message of concern to my ex-girlfriend, but was told: If I send it again, I will block you.

She still has your heart! Because if it weren’t for you, I would have blocked you directly without even saying anything.

Do you know that she is still angry with you? What’s the use of just sending those false text messages every day? What she wants is an explanation of your previous behavior. Before, you broke up if you said break up, but now you make peace if you say make up. If it were you, you wouldn't be so casual, right? Women are models of formalism and obstacles to logical thinking, so use your actions to tell her that you really can't live without her, and that you were really wrong before. Be really nice to her from now on! Prove it with your actions!

Please accept your answer, thank you