My ex-girlfriend returned my message so slowly. Why?

First, as she said, she likes someone else. When she really likes someone else, she won't care about you as much as before. So just get back to you.

Second, she is angry with you. Then you'll have to find your own reasons. You have been together for a long time, so you should know her well. Think carefully about why she is angry, whether you are sitting in the wrong seat or something. Find the reason and the problem will be solved.

In fact, girls are very easy to coax, and men can't be proud of themselves, but they should respect and let go of the people they like. Go to comfort her, communicate with her more, and wish you good luck.