they will use you or just treat you like a best friend for one minute and the next minute get mad at you for nothing they will listen more to others then you they will talk about you behind your back and keep acting like there your friend,they will use you to try to benefit more as a person they will also try to tell you what kind of person you are when you already know what kind of person you are and wanna be they will lie to you about stuff just to get there way from you when they cant get there way with others
First off, envious and jealous means the same thing. But to answer your question: 1-They never compliment you. 2-They're never happy about your accomplishments. 3-They are very unsupportive about your brilliant ideas, just to name a few. I can go on and on, but I'll leave at that.