Miss my ex but I’m married

It’s been 10 years since we broke up and I think of him almost daily. I miss him and what we had together. He made me feel like the sun rose and set just for me. He got a full ride scholarship to a college out of state. Long distance was hard and we both tried dating other people. I ended up having a child and got married. He is still single and has no kids. I think of him all the time. I wonder if he still has feelings for me. The urge to text him is almost unbearable sometimes. I have stood my ground and not contacted him but I would love to say hi and catch up and see how he is. Thoughts??