Why doesn't boyfriend like to reply to text messages? Doesn't he like me?

This is a matter of personality ~ don't think too much. Everyone treats feelings differently, and men's thinking is different from that of women. As you said, he should be interested in you. Maybe he is introverted, he does whatever he likes and doesn't make too many redundant replies. Maybe he didn't think it was necessary. His love should be deep. If you don't understand him, he will always complain or question him.