Is there anyway to get him back? Why do we keep texting if he dont like me?

Broke up with the bf of 3 months. We are in 30/40. We have a baby on the way. He told me today that I mean nothing to him and neither do my texts Also, I told him he will find out that the gr is not greener on the other side always and he will be back." He cannot deny he won't be back. He just says.....wherever his road may lead. Why cant he deny that he won't be back? Is he rethinking?