I am not sure of any existing natural gapes between genders in the case of emotions. The quantity of emotions are similar in both genders I think. But what makes women more demure has a good say in our societal norms. I would blame our society that oppress women of their rights. You can still see people asking their sons not to cry at any situation equating that trait to girlish! Why shouldn't we men cry? Taboo!
Because the concept of relationship before marriage is quite different in India and I belong to an Orthodox family
That is a big concern. Although so called culture and traditions carry something good like what you have just figured here out, it is still in the trap of some obsolete norms. Gender parity is a concept which has been turned down by these outdated cultures. As long as there are no legal deterrents, no one including parents should jeopardize the relationship from flourishing! Rationality should win.