Also one of the energy source we all have is all living things around us, besides food. Plants, animals and humans. We need this energy from people, but us humans are made with a mixture of many different potions, very complex, we are. Some of us are energy givers and some of us are takers. There are people in this world they are huggers, they simply give energy by hugging. It does not mean one is bad and one is good. That is how they are made. They seek energy. One of the way people also get energy is to make you do things their way. They get the pleasure, they feel good. MAny mothers do this to their children not knowingly, but they need that energy from some where, children are the closest. I remember a book called Celestine Prophecy and one insight just talks about energy give take between us and other beings. Dogs are great energy givers. And some are pure energy drainers, I call them black holes, they suck energy out of you totally. But again that is their need.
Your need is to share your energy with the one who is going to share his or hers with you. That will happen.
If this person is making you feel bad, then I like what mttndeww said, "cash out".