my friend got the job promotion i was supposed to get . oh damn , that sucks so much , i am sorry , but if he is your good friend you should be happy for him , maybe something better awaits you i guess so , but i am so envious of him . i know you are , and it takes a lot of practice to remove this feeling , but it 's a bad feeling to have and you should look for other chances
The cause that triggered the feeling of jealousy is a friend getting a job promotion that the person had expected to receive.