Why don't you try another experiment?
Be the one who starts the talking and see how many people around you will be more than glad to be asked questions, to answer, to believe that you care for them.
We may all go into the "no one needs me mode". I used do that when i was a little girl.
Now i know better. I know that i care for a lot of people and that a lot of people care for me.
Not everyone of them tells me about how they feel and how much they care but sometimes it just pops out when i least expect it and i realize how much i have misjudged them.

Care for a piece of advice? Start to care for others and others will care for you.
Promise