Jealousy is a normal feeling and that should not be mixed with the envy. Envy happens when you want anything but cannot get it on the other hand jealousy happens when you have something but you feel that you will lose it over a period of time. It is a feeling of having something less.
We all have a habit of surfing the social media for fun. We check the status and photos of the partner. We also have a habit of checking the last seen status on WhatsApp. If you are doing the same again and again then your relation is being suffered.