Seeing my son off at BJ airport

I was going thru the motions, trying not to think about the parting. He was confused about where we would part our ways. He waved bye to me a few times before the actual parting. I can see he was eager to return. He didn't mind being separated. The moment was approaching. We were near the security checkpoint. I saw him walking away from me. I started to choke. Tears swelled in my eyes. I tried my best to relax and forced a smile. We waved goodbye. I couldn't control my tears anymore. I hid myself behind a board. I saw them looking back toward me. I waved again, still hiding my face behind the board. I turned around. My tears streamed down my cheek. It felt like a part of me was taken away from me.