Why am I so frigid towards people?

I have a real issue:),, I feel bad for poor, ill people, who get in troubles ,who get kidnapped ,, but I don’t have a real feeling for friends/boyfriend,family I mean if they get hurt I help them but otherwise I dont miss them ,I don’t feel anything for them I feel so frigid towards people ,,it annyos me when they call me ,,I always like to be alone ,I know its not healthy but its the way I became I had bad shocks in people’s I loved I know it might be one of the reasons the thing I like to do is to work out, listen to music, do that kinda stuff alone, even food I like to eat it watch it tv, now my fiancé is calling me daily ,sometimes I see the call and say mm my mobile was getting charged I pray to god that I take one vacation from his calling although he is cool guy, and I know that , it bothers me the way I behave, I wonder what if we live together ,I feel that I m not ready for this ,,maybe I m not that type that need emotions in my life! in the same time I have a teddy in my bed I adore ,I miss my ipod,I miss items not people I ve changed a lot ,,the more I get isolated I get colder ,