friendship?

im going to feel like one of those friendless losers who reveals their feelings on the internet hoping someone will pity them or comment or can relate to how they feel. but i found a quote online by Irwin Federman that's completely true: "People love others not for who they are, but for how they make them feel." It makes me question some people whom I like being with, therefore they make me feel happy while other often upset me, but they're good people who have lots of friends. It makes me wonder, do I really love them? Or do I just love who they are, which, therefore isn't love as described here. A friend wanted to make plans today, but cancelled..then I found out she decided to hang out with another friend. But I didn't want to tell this person, therefore expressing anger towards them. I just couldn't. anyways, i'm hanging out with a friend today, who i havent in a longg timee. So, until I further question my friendship with people...