No, sex is necessary for most relationships to remain stable unless both the man and the woman are completely and utterly asexual (highly unlikely), usually it's the woman that doesn't wanna have sex if the guy she's with isn't attractive to her.
No, sex is necessary for most relationships to remain stable unless both the man and the woman are completely and utterly asexual (highly unlikely), usually it's the woman that doesn't wanna have sex if the guy she's with isn't attractive to her.