That Expression

The last time I saw him was last week. I didn’t greet him, pretend that I didn’t see him. I said to my friend that I had to go home, because the next day I had an exam. But it’s just an excuse. I felt like if I saw him, the pain will be increase. But, that’s not what I’m going to talk about today. This is all about “that expression”.

Two weeks ago, we went home at the same time.

“goodbye”, I said.

But he answered, “bye” with “that expression”.

I don’t know what I must say about that expression. It’s like sad or disappointed. If it’s sad, why? Is there something bothered him? I wanted to ask him, but I can’t because I’m a looser. Before that happen, we have a happy time. We laughed together, we chat with the others. Then, why? Until now, I can’t figure it out. What was that expression? But, for you know, when I saw it, I startled and I can’t forget about it. I wonder what was happened to him on that day.