Destructive envy

It sometimes happens that envy like an adder snake penetrates the relationships of people and makes them envy to each other. It is the destructive kind of envy and it is common for such an envy to destroy everything people managed to build. It is the destructive envy that makes people angry about each other and make people quarrel.
Say, there are two friends and they are the best friends. Say, they study at the same university and they have great plans about their future. We all have plans and we usually plan to stay together with our friends for the rest of our lives. Though, it is common for life to correct our plans and to bring changes into it. So, one manages to become a skilful specialist and the other...
And the other remains on that same level and this is where the envy comes into his or her heart. At first, they feel happy about success o their friends but soon this feeling will be replaced with the envy and this envy will later develop into destructive envy. The one who failed to gain success will feel envious towards a friend and this envy will make them alien to each other.
Destructive envy is able to ruin anything. It is the feeling that sees no obstacles on its way. There is no such kind of relation that would be resistant against destructive envy. It is important for people not to let this feeling to break their relationships and friendship they have.