What are the pros and cons of having friends?

Fortunately I have (in my opinion) no friends except my loving wife and my mother. In my job I have "friends" because I have no choice. Since childhood I have been stepped upon, ridiculed, beaten up because as a christian child I cannot hit back.(very bad advice).It did much mental harm to me that I almost commited suicide being an adolescent. I said to myself being a child,"I will never make friends, ever." Now at the age of 58 I have put all those things behind me...yet in my job there are some people who love to hurt other people because they feel inferior and they want to feel superior. They say inane things to me and I return their insults back or I ignore them. What saddens me is when I hear a person that has a big problem or is injured or has died is that I feel impive. I remember a supervisor who always called me "cabron" frequently died with a cerebral hemorrhage. I said within myself "Good! Let's see if you can say that filthy word to the devil in hell." He was a womanizer. I did not attend his funeral. Of course I have a few work partners that are courteous, respectful, friendly and true warm friends. Those are very few!! I envy my wife because she an extrovert and very christian...everybody loves her....but she's is she and I am myself. The pros of having a friend is when you need help you get it. ( very rarely I get it) Therefore I do it myself. The cons is they would try to take advantage of you. Of course I am not the only one who goes thru these things...people have them too. what is your opinion?