I texted him, why didn't he reply? What should I do?

I think you'd better let go You've been working alone since the breakup, and he hasn't done anything. Besides, it can be seen from what you said that he doesn't want to see you. Maybe he doesn't love you anymore and wants to forget you! Maybe I didn't reply because I didn't want to refuse you directly and break your heart. I sincerely advise you to stop making hopeless efforts and find someone you love, and you will always meet them.