If your worst fears are confirmed, you will likely be in a highly emotional state. You'll likely want to rush into the room and pitch a fit. As hard as it may seem, it is better to remain calm, or attempt to, anyway. Approaching your partner with a level head will yield the best results. Be prepared to back up your suspicions and for him to deny them. If you want to save your relationship, be prepared to put in the time to work through it and accept that he may not want to continue it.

Cheating may be a deal-breaker for you, so you must also be ready to call it quits if it turns out your concerns were warranted.