Something very similar happened to me. The messenger was telling me information about my wife which i already knew. The person was trying to create a barrier between me & wifey.
Truth he told me when I got the message I was kinda upset because we just had a small argument. It’s amazing how the brian works and small things can lead to bigger issues.
However I left for work and when i came back I sat down with my wife and I was positive that she would not cheat on me.
My suggestion is to speak to your wife. At the end of the day she is your life partner and you can speak to her about this.