How often do most couples have sex?
There is no normal amount of sex to have. The only normal is to have sex worth having! Comparing your relationship with others' is pointless. If someone is having sex that feel likes a chore, that is not okay. No sex should feel like a chore. Rather, you should want to have sex that is fulfilling and pleasurable (both physically and emotionally). So, if you're having mind-blowing sex once a month, that is great.
Losing sexual attraction toward partner.
Losing sexual attraction toward a partner is a common experience and can be influenced by a variety of psychological, relational, and biological factors. Understanding the psychology behind this phenomenon involves considering several key areas.
How to have good sex.
Sex should be good, and what society deems 'good' is very misconstrued.