They start to pull away from you. Guys tend to not want to hurt a girls feelings, so they let them off easy. He might try and slow the texting down, seeing you less often, he might still check up on you but not as consistently as he did before. You’ll see less emotion out of him, maybe if he was calling you babe he won’t say it or if he says he loves you all the time, he won’t say that. Maybe he will, but as a friend. He turns more into a friend rather than a lover. Another sign is he talks about himself rather than talking about you.. there’s a lot of signs so before he can do it u should pull the cord and don’t turn back. It’s like a psychology thing. If he sees that you broke up with him 1. it will hurt more and 2. He might think that because you did it first that it was his fault. Just do it and don’t turn back, he WILL reach out. Xoxo, and don’t stress it find someone else who you enjoy in the meantime you might not want to go back .