Popsugar Family Relationships Reasons You're Not Having Sex With Your Spouse 14 Reasons You're Not Having Sex With Your Spouse (and How to Fix It) June 14, 2018 by Laura Lifshitz View On One Page Photo 12 of 14 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 12 An Emotional and/or Physical Affair Hate to say this, but this is also a reason the sex dies; someone has found a "substitute." Tips: If you suspect it, talk to your partner and have concrete proof if possible. See a therapist yourself! And suggest marital counseling. Decide what you want to do if your partner is cheating. Previous Next Start Slideshow RelationshipsMarriageSexAdvice