Am I a horrible person?

Within the past year I've cut a lot of people out of my lives, some have done me wrong, but some I have no reason to really have cut off. I feel as though I have let many people down and I don't want to let these people down. I screen phone calls (I hate talking on the phone) and I will answer texts hours late just so that I don't have to worry about making plans with the person. One of the friends I cut off used to be my best friend and she started partying a lot, and I never seem to know when enough is enough so I've embarrassed myself although whenever I would go out with a group or be at a party i am "the life of it" I feel awful and I want to keep in contact, I want to talk to these people but I'm afraid of making plans with them if that makes any sense. So I have only one friend that I haven't seen in about 4 years, and it's getting to me. I wish I had female friends to talk to, but I'm doing it to myself. I also  do have my boyfriend who loves me dearly, but 3/4 of the time I feel nothing towards him or feel emotions at all really. I don't know what to do with myself or how I feel or how to go about building/ mending friendships.