A divorced man is indifferent no matter how his ex-wife sends a text message to scold him. What does he mean?

I don't know, just people! Being together for so long. We know each other very well and understand each other. It's probably a woman's habit to send text messages like this after separation. He knows a woman's personality and doesn't send text messages to reply. He may know this woman well. It may also be a man's habit!