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What happens if you meet someone kind, smart and funny, but erotically you just don’t click? Alix Fox explores the frustration of sexual incompatibility

On paper, Rohanna and Dan*, 26, were such a match they’d set the page alight. “I was totally disarmed by the chemistry,” she recalls. “He had a fascinating brain, a sweet soul, a fabulous job and he was as doe-eyed over me as I was over him.”

But when it came to having sex, the man who seemed destined to be Rohanna’s everything did nothing for her. “We both had so much enthusiasm, but it was like our bodies didn’t mesh. I kept waiting for something to kick in. It was a kick in the guts when it didn’t. We stayed together for six months then split up.”

Four women get real about sex in long-term relationships

When sex seems hexed in this way, it can be as mysterious as it is heart-wrenching. “Evidence is scant, but it’s been suggested there may be subconscious mechanisms at play in some cases of erotic incompatibility,” says Cynthia Graham, professor of sexual and reproductive health at the University of Southampton. “Evolutionary psychologists have posited that we might experience sexual clashes with people whose genetic complexes are discordant to our own, because it affects the ability of us and our potential offspring to fight disease.”

But often, incompatibility comes down to a contrast in sexual tastes and appetites – most notably, a mismatch in libidos. Data from Natsal, the British National Surveys of Sexual Attitudes and Lifestyles (one of the broadest and most detailed scientific studies of its kind worldwide) indicates one in four UK couples are imbalanced in their desire for sex.

“It’s common, but it can be devastatingly destructive,” observes psychosexual therapist Aoife Drury. “If the higher-libido individual pushes for sex, the partner with the lower drive can feel anxious or angry, thus losing desire further. The higher-libido individual may then stop initiating sex for fear of rejection or being seen to nag. Intimacy grinds to a halt, creating feelings of resentment or disconnect.”

A survey by dating site eHarmony found that 20% of Brits feel they’re somehow sexually incompatible with their partners. Problems cited include one person being more focused on the physical rather than emotional side of sex and differences in degrees of erotic adventurousness or allure towards a fetish. Yet there are two commonalities running through virtually all incidences.

“Firstly, people expect sex to be unrealistically harmonised in a way nothing else in relationships, or life, is,” says Kate Moyle, resident therapist on BBC Three’s new counselling series Sex On The Couch. “And secondly, perhaps because Brits find sex excruciating to talk about, they may write issues off as inherent, unfixable incompatibility and move on, rather than attempt to address them in any real, practical manner.”

Graham believes this second factor is key. “Natsal’s report showed the strongest predictor of sexual problems, mytranssexualdate sign in short and long-term, to be a lack of effective communication,” she adds. Learning to communicate and collaborate is the best thing anyone can do for their love life.

Finally science has the answer: this is how much sex you really need to have a happy relationship

But what does that actually look like? If you and your lover decide that trying to increase your sexual rapport is worth a shot, the following advice – while not comprehensive – is better than taking a clueless shot in the dark. Consider it a jumping-off point. It might give you hope that you don’t need to jump ship. Start by viewing sex as something most people work on, rather than something that should just work. “If we see incompatibility as inevitable, we can remove some of the shame and start to think creatively and constructively about it,” suggests Meg-John Barker, co-author of Enjoy Sex: How, When And If You Want To.