I have been married 15 years. Recently, I found that my wife often called and texted a male colleague (who is also my close colleague). I texted her several times.

I think you can talk to that man. You say what you think. People get along with each other through communication. According to the information you submitted, they sent thousands of messages and called for six or seven hours every day. This is definitely not something an ordinary friend can do. I feel that such data can only be found by men and women in love. I think you should stop it. Be a man. Tell your troubles. No big deal.