Why are people jealous?

why I am geeting blamed everytime and why people always envy me

They lack self confidence

They want to be like you or what one girl did to me she used me to get to my friend because she was jealous that i was friends with him and he liked me so she ditched me to go midnight bowling after i took them the weekend before to go mini golfing and go karting or they think that they are better then you and they aren't being recognized for it

people have low self esteem , they are insecure they feel worthless not worthy, they think the world revolves around them, there self ego gets the better of them.there self image  feels threatened, jealousy is an emotional experience. you dont have a problem , they have a problem, people who are jealous need some form of help.