Jealousy

*Jealousy in romance is like salt in food. A little can enhance the savor, but too much can spoil the pleasure and, under certain circumstances, can be life-threatening.

well, as another saying goes... too much of something is bad. Sometimes jealousy is just an spice added that makes love more obvious... in a right amount and way... sometimes we find it cute. But, too much of it can spoil a good relationship and mood. It can also lead to break up and hatred.
We just have to limit ourselves and let not be eaten by our jealousy... Going apart is not bad... growing apart is bad.