What does it mean for a boyfriend to send a text message to his ex-girlfriend?

Obviously, she has not disappeared from his heart. Besides, he said, otherwise he wouldn't keep it for you, which shows that he has the heart to send text messages. Secondly, it also shows that he still cares about you. In addition, a woman can't accept that her boyfriend loves others, but she should be allowed to keep the memories of the past, because he loves you, but it is human nature that the past can't be completely forgotten. Trust him.