Which means it's just a coincidence. Because you also know that the other person knows that you like her, but the other person doesn't like you. So the reason why he pays attention to your dynamics is because he has this habit. What he cares about is not your dynamics, but everyone's dynamics, because he has nothing to do when he comes home every day. At this time, he will surf the Internet. Of course, he will browse his circle of friends when surfing the Internet, so you will feel that he has been paying attention to you, but it is actually because you update your circle of friends every day, and the other party can see everyone's dynamics as soon as they log in. This is your own misunderstanding.

Secondly, every time you change your signature, the other party will change it, mainly by coincidence, because it is normal and irregular to change your signature, but you think too much, so you don't need to think so much.