Better ask his family and friends. It's not easy if you don't have an address. If you can't get in touch, don't worry ~
Let it be. Even if you play well, you may get points.
All good things must come to an end. Everyone will make different friends at different times. Some people come and some people go, and no one can stay long. Don't be too sad! Wherever you go, as long as you are honest with each other, you will meet friends who can talk to you.