What does cousin mean to me? Let me tell you to analyze it.

Look at your detailed description, the beholder sees clearly! Let me tell you in detail:

First, the less he sticks to you, the more he wants to play with you. Boys of this age are a little shy in front of children of his age.

Second, you see that he is eager for you to play with him. Why not play with him? He dare not take the initiative. Maybe he feels inferior? Afraid of you? Maybe he is introverted and likes to be passive. Then there is some lofty, don't like to catch up.

Third, you said that he took the initiative to chat with his brother and sister, but he didn't take the initiative to chat with you. Maybe they are very different in age, so they are like elders to him. Of course they are not bound!

I hope my answer can help you, and I hope you two can play well together and don't lose your temper! Study hard, son. Why do you study these things?