I chased him before, and he came to me a few months after we broke up, and he didn't return me. Should I ask him why he ignored me?

In the face of this situation, it depends entirely on your own feelings and thoughts. Here are some possible options and considerations:

1. Direct communication: If you think it is reasonable to ask directly, you can find a suitable time and way to ask him why he contacted you again and why he doesn't reply now. Remember, communication is based on mutual respect and understanding. When communicating, try to stay calm and rational, and avoid emotional words and behaviors.

2. Respect the other party's decision: Sometimes, the other party may have some personal or unshakable reasons that cause him not to reply to you. Respect his decision, don't speculate and don't ask questions. If he feels the same way about you, he may take the initiative to share it.

3. Maintain self-confidence and independence: It is very important to maintain self-confidence and independence no matter how the other person reacts. Don't let his every move affect your mood and daily life. Remember, you deserve to be respected and cherished. You don't have to doubt yourself or worry about other people's behavior.

Everyone's situation and handling methods may be different. You can make a decision based on what you know and feel about him. No matter what the result is, try to keep an optimistic and positive attitude and wish you success!