Wife was calling a male coworker ever day for two months was there something going on?

It's possible. Or, it can be work related discussions. Have an open discussion about this with your wife and talk about how you feel about her calling a male coworker every day. It's possible that they're really good friends, or there maybe something more going on. Whatever you do, don't lose your cool--you never get answers that way, but express your emotions.