Am I in the wrong for saying hi to an old friend in front of their wife?

Let me start of with I’m living outside the country for work and I’m originally from Texas. I went to school in Texas up until 6 grade then moved states. I work customer service. Today I saw a guy i went to school with in Texas so like 10 years ago. And I thought it was crazy how a guy I hadn’t seen in a decade happens to be working at the same place and living in The same country at the same time as me. I was like yoo we went to school together we were in the same class and what not just stuff like that. And he was like oh yeah! Then we looked over at his wife and she was looking at me with an ugly face and then it got quiet and awkward. So I just assumed my work persona and kept helping them like Every other person. I was respectful and spoke to both of them equally. But the awkwardness was still there and tense and it just made me feel shitty