Hi I think it is not possible to get rid of these thoughts. You can only try to make yourself busy all the time to distract yourself from having such thoughts and with time the pain will heal though I doubt totally gone. Focus on the husband good points but frankly the trust is broken. Sorry to say that but if he can cheat with you he can cheat with somebody else too. So if I were you I will still be on the ball for such incidents. But for the sake of your child , try to hold the family together and think positive thoughts whenever you can
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