Is it normal to not truly care about anyone?

This one's a tough one...I don't have many friends, and am considered somewhat of a "loner" basically since I've had pot shots taken at me more than once by someone that I've considered a "friend" (one of which was printed in my high school newspaper...the writer of the article I thought was my "friend"...basically it was nothing more than a character assassination)...I do have many favorable acquaintances, however...and I do care about people...and am going through hard times myself...I agree with knight..try to get to love yourself first...for me, loving myself is much harder than is loving someone else...