This is probably my first time posting anything on reddit, I usually just lurk and upvote memes. But, I have nowhere else to go to vent about this so I'm here.  
A bit of background, I manipulate people. A lot. And I never feel any remorse for it. Maybe that's because I know how to manipulate people, and I know that they would never find out. I'm pretty good at it, too. Whenever I manipulate people, either by breaking them or inflating their ego, I feel really good about myself.   
I always try to out-logic people. I'm afraid of being stupid and using my emotions during arguments, so I rely on facts. I almost never talk about my emotions, and it's made me start to think that maybe I don't have any. I never feel remorse, I never feel upset when bad things happen to people, and I'm selfish. Sometimes I can just turn on the charm to make myself more likeable.  
I admitted this to my friends today. I told them that I've been manipulating them, I told them that I can't bring myself to care about people. They all either lost trust in me, didn't talk to me at all afterwards, or said they were disappointed in me.   
I don't know if I can survive without my friend group. They've been with me through everything. And I can't even bring myself to feel upset about it. There has to be something wrong with me, right? Some illness that makes people manipulative and non remorseful?