The girl didn't reply to my WeChat for several days, and it took several days to reply to me. Let's analyze it.

Judging from your written expression, analyzing the mentality of girls should be like this:

The girl had some misunderstandings and contradictions with you before the National Day. He should be angry, so he ignored you. Although you apologized, he should still be angry, so he still won't return your WeChat or text messages. I don't think I have forgiven you.

However, after the National Day, he contacted you. It should be after he calms down, and then carefully consider the emotional problems between you. He thinks your apology should be acceptable, and the relationship between you still has the possibility of development, so he took the initiative to contact you on WeChat. As for the reason why he ignored you these days, you don't have to be too serious. The girl just found a step for both sides. If you still like this girl, just pretend it never happened.