Hard work and a brief encounter may be the best explanation for a friendship.
Many people always think that when they are with friends, they have to sing and drink, otherwise they will be out of date. But people who really understand you and want you to become better probably just want to see you achieve something. Because you know the root of the matter, you don't have to hide it, you can open your heart and face it calmly, and it won't be so low-level to talk peacefully.