Situations

I was having a conversation with my best friend yesterday, about what exactly makes us happy? Why is it that a person can't give us happiness and why is that so bad. I'm not naive and I can see the pros and cons of the situation, but there are pros and cons to everything in life. I wouldn't say that my world revolved around this one person but I can say that he brought me happiness. Which in any relationship is good because why wouldn't you want to be with someone who brings you sorrow. This relationship did not consume me but it was a piece of me that is now missing and it hurts. You take things day by day and hope things get better but the process really sucks. But thats life... i see...