I forgave my wife's affair but she's betrayed me AGAIN... how can I trust her?
She has apologised repeatedly and said she didn’t want anything to happen with him, but I can’t stop thinking about it

TL;DR
- The author cannot stop thinking about an incident involving his wife.
- The wife has apologized multiple times.
- She stated that she did not want anything to happen.
- The author is experiencing difficulty with trust.