Possessiveness is not good for any relationship. Possessiveness always lead to destroy the relationship. Little bit jealousy is good for a relationship..but when jealousy crosses the limit...it is called possessiveness. If you are feeling this kind of emotion then you must find yourself..why are you feeling this kind of emotion? Why are you feeling this jealousy? Low self-esteem, over-emotional dependency can be the reason. To read more about this- https://myfitbrain.in/blog/how-to-deal-with-posessiveness