Is sex the real proof of love?

Some people belief that the way of demonstrating love is by having sex. But sex could be only something that’s makes part of love or maybe it means love.

I believe that sex isnt necesary a proof of love, many people have relationships in which they can feel love with small details such as simple words or actions, that are meaninfull without going further. However, it depends on the culture and the ideology that couples follow. at the end of the day it's their desition to do it or not.

When a friend of you have ended a relation is because love has finished, if by any chance you fall in love with that ex relatio, there is and shouldn't be any problem with being with that person, if the relation ended in good terms, but if it ended in bad terms, it Better to live it like that since it's not worth it to lose a friend over a relation.

I think sex is not necessary to show love, you can show it by a kiss or a hug, I know that people like to express that love in sex, but that doesn't mean is necessary