Researchers asked more than 1000 U.S. married couples about their desired and actual sexual frequency. Spouses who weren’t getting as much sex as they desired were less satisfied and thought about ending their marriages more often, had less positive communication with their partners, and reported more conflict. Similarly, the spouses of sexually unfulfilled individuals reported these same negative outcomes (i.e., if you aren’t getting the sex you desire, your partner is less satisfied etc.). While these effects are likely reciprocal, getting the sex you want is associated with better relationship quality for both you and your partner.
Willoughby, B. J., Farero, A. M., & Busby, D. M. (2014). Exploring the effects of sexual desire discrepancy among married couples. Archives of Sexual Behavior, 43, 551-562.