I texted my ex-boyfriend, but he didn't reply, so he didn't contact me again. I haven't been in touch for a month. I heard from his friend today that he returned it last night.

This month has been very simple and clear, that is to say, well, your boyfriend saw your message and didn't reply, and he didn't contact you again. He even said that he hadn't contacted you for a month, and his friends went to play cards with him for entertainment. It means he hasn't disappeared, or he just wants to break up with you completely. Maybe he didn't have such deep feelings for you in advance, or maybe he didn't want to pester you any more, so he broke up. In either case, you only have the ending of breaking up. Haven't you heard a word? A woman chasing a man is separated by a veil, and a man chasing a woman is separated by a mountain, but once a man stops, well, once he breaks up with a man, or when he gives up completely, it means that you have no possibility of getting back together. So, start a new relationship yourself as soon as possible!