My ex-girlfriend suddenly sent me a message. What do you mean?

Your ex-girlfriend suddenly sent you a message, but she was still thinking about you, especially at eleven o'clock in the evening: thank you for teaching me to ride a bike. This sentence goes without saying that you have taught her some basic skills, but of course you can't say it too directly. This shows that she misses the time spent with you very much. When she is lonely, she wants to talk to you, recall the happy times in the past, and also want to know how your life is. After all, she is in love. Although she broke up, it is normal that her past feelings are hard to let go. I hope each of you can take care of yourself and live your own life.