I Found An Old Boyfriend Through Facebook But His Wife Isn’t Happy. What Should I Do?

I recently found an old boyfriend through Facebook. We haven’t spoken in nearly 20 years and were so happy to find each other again. We spent months skyping and emailing. He is married with a daughter and I’m divorced with a daughter. Suddenly he turned cold saying his wife wasn’t happy with our contact.
I continued to email him but he has been adamant about severing contact. He was a different person and asked me not 2 rite 2 him. I’m very depressed and I’m struggling to move on. 

What would you advice this lady please? Feel free to post your advice.