The best way to uncover an unfair is to monitor for changes in your husband’s typical patters. If you notice your partner’s secrecy around cell phones, longer work hours, and disinterest in intimacy, it is time to investigate the possibility of infidelity. Take a close look at your phone bills. Any long, repeated phone calls to an unknown number may be an indicator of a significant other. If you have a joint cell plan, get a copy of text records. Text tracing is a sure-fire way to catch a cheater red handed.
This can be one of the most difficult things to go through, when you believe that your partner may be having an affair. If you don't mind invading his personal spaces and privacy you can do the following: 1. Check his phone, it can be a treasure trove of information 2. Check his laptop, emails, skype calls etc 3. Follow him around