Wife cheating behind my back

Wife was with an online boyfriend. Tried to convince me to get a girl friend. I told her to stop her activities she said she would and less than 24 hours later she’s back at it….

Edit: just wanna say…I love you guys (and gals) in this subreddit even when I feel like shit and put all the blame on myself you guys help me straighten myself and feel better about me. I’ve been for 6 weeks blaming this shit on me and it’s not me…..