it is an interesting topic.
at first, i thought that true love requires great sex, and vice versa. you know, like the ying and yang, and perfect harmony and whatnot.
but then, what about homosexual sex?
it is stereotypically known that women sex for love
and men love for sex
so for women, sex is a mean to a greater good, true love
and for men, the greater good is, well, sex.
women have sex to get love
men give love to have sex
in physics talk, that is like gravity working against thrust to achieve equilibrium, which keeps the satellite in pepetual orbit
equilibrium, that is the ideal situation where you get both
in reality your great sex partner is an asshole
or your true love has a small prick or is handicapped in bed
and that is what makes life cruel
which explains why many people to have 爱人 & 情人
then you you greedy basturd have covered both departments