1. She doesn't like the boy who asks her this question, which is tantamount to rejecting him.

2. Your relationship is not deep enough for her to open her heart to you and tell you her emotional experience, and she doesn't want you to misunderstand her and think too much about her.

3. Girls have vanity, and no one wants others to think that they are unwanted leftover women.

4. She lied on purpose.

5. what she said casually, she didn't think about it at all.

6. She didn't want to talk to you, so she perfunctory you.

hehe, good luck.