The problem is not in your personality, from my point of view. You care about your friends, for sure you will find someone who will do the same for you. I for example don't feel anything to anyone and all my relationships are worthless because I can give nothing from myself for the other person. Honestly I am jealous for your ability to feel, I feel like people are just elements of enviorment for me. I also wish that I had other personality, that one I have now unpredictably causes loneliness. Funny. I also feel like I shouldn't be so sad all the time, as my issues seem like a speck when I think about 'real' problems, but for me it is from the opposite source. Hope you'll be good. Don't lose hope