My boyfriend blocked me. Can I say how I feel? What can I say to make him open up? Because a joke blocked me.

Without equal love, it is difficult to be happy.

In love, the most appropriate way to get along is to respect each other, relatively equal. Because you played a joke, he blocked your boyfriend. Maybe this sentence is too much for him. He takes it seriously. But you are not his ordinary friend after all, and his "cold treatment" is not what a qualified boyfriend should do. If there are any contradictions or differences, it is better for two people to solve them in different ways.

He seems to be the master in your relationship. You love him, so you put him in a higher position, but he didn't treat you equally, but sat in a high position with a clear conscience and judged your joys and sorrows.

So in this case, you can apologize to him for your joke. But he also wants to apologize for covering for you. Only when two people give equality to each other can love continue smoothly.