Frenemies: Our new age friends

Howdy,

Today I just remembered a classic quote by Gore Vidal.
 It goes something like this...." Whenever a friend succeds, a little something in me dies"..... As I go deeper in thought, I can dig one word from the depths of my mind to categorize these people FRENEMIES.....

The Merriam Webster dictionary describes frenemy as one who pretends to be a friend but is really an enemy. A frenemy unlike an enemy is not necessarily a bad person. Most of them are capable of being great friends, just not with us. The big question here is how do we know whether the person we are going around with is our true friend or a frenemy.  My own observation goes something like this..... Think of the person whom u wanna categorize as a friend or a frenemy..... Now answer the following questions with yes or no..

1. Do you feel tense when the person is around?
2. Are you always on ur toes instead of being relaxed and calm when the person is around?
3. Do you have a hard time being yourself when the person is around?
4. Are you in serious need of self-esteem booster around this person?

If the answers to above questions is yes, rest assured..... you have recogonized the frenemy in your life.
We do not make frenemies knowingly or by choice in life..... Most of the frenemies are either friends of friends or co-workers in workplace. Due to more intertwined relationships among people in workplaces and the ever increasing time people have to put in at the workplace, this is the place where u would have the maximum number of this speices called Frenemies.
A workplace frenemy is one who would be always competitive with you. This person would try to get in the last word or to one up everything you say. This also might be the person who would make fun of you behind your back but pretend to be real close with you when you are around. In fact this ass***e will always rub you the wrong way.

Anyways, enough of the descriptions and definitions...... The thing to think about is whether at all we should tolerate such people in social circles or at work????  Well... in social circles I can say with complete conviction that I whould definitely avoid mixing or be even seen around with such people. I would prefer being alone at a social gathering then mixing with such geezers.
The point to ponder is about the workplace..... How to deal with the frenemies there?  What is your take on this guys.....  What would you do? Will u put up with these people at work just to be in the league or would you just act professional for work related issues and put a fullstop to the relationship with tis frenemy when it comes to being close on a personal level?

My personal take on this is..... I give a damn whether the frenemy is at work or at a social gathering... I don't want any negative vibes around me so I will definitely stay away from this crazy specie......
Do lemme know your take on this.....