My friend’s birthday

             Yesterday, it was my friend’s birthday. Actually, nowadays he has prepared graduate school so he couldn’t have much time to enjoy his birthday, but I decided to go to a library where he study in order to surprise him. I thought he would be alone without any celebrate. When I got there, he seemed like to be astonished by me. As I expected, he was alone, and looked like very tired and a little bit depressed. After he finished everything to do, we went to a park near his house. Drinking few beers, we chatted for a considerable time. He and I have been friends for about thirteen years since we were middle school students. I often feel that time is flying, whenever I see some pictures taken with him. Yesterday, I talked to him that I feel that I don’t change at all, which means I am not more mature than when I was teenage years, but my surroundings change gradually so I feel a little bit sad about that. One of our friends is going to get married after a couple of months. To be honest, it was really quite strange to me because I have never ever expected that my friend, who grown up together, is going to get married. It makes me feel that we are already fully grown-up, though I still have same mental age like teenage years. On my way home, I hoped one thing that we will not be mature like now, even if someday we will be in the job and get married. Now, we couldn’t meet each other as many as we did before, because of our own way in life. However, I know that he is still my friend and the only one who treats me as I am. I  

간단한 영작을 좀 해봤는데, 여전히 유치원 수준이네요.. 매끄럽지 못한 표현이나 문법적 오류 있으면 지적 부탁드립니다! :)