There may be many reasons why a Leo man does not block, delete or reply. The specific explanations are as follows:

1. It may be that he is dealing with his emotions. The Leo man is a more emotional zodiac sign, and when he needs time to process his emotions, he may choose not to reply.

2. Maybe he feels he has nothing to say. Leo men sometimes feel confused or frustrated. At this time, they may choose to remain silent instead of finding something to say.

3. Maybe he wants to punish you. Leo men are very self-respecting zodiac signs. If he thinks you have done something wrong, he may choose not to reply to punish you.

4. Maybe he is thinking about your relationship. The Leo man is a thoughtful sign. When he feels that there is a problem in your relationship, he may take time to think and reflect.

5. Maybe he has lost interest. Leo men are very attractive signs, and if his interest in you has worn off, he may choose not to reply.

In general, to understand Leo men’s behavior of not blocking, deleting or replying, we need to take into account the specific situation and background. If you are confused by his silence, try to have honest communication with him to find a common solution.