work again

I can’t believe I go back to work again. Last Friday I got a call from the place where I used to work. They asked if I have other part time jobs because they wanted me to work again. I said I had not have jobs since I quit before but I didn’t want to go back to work. They asked for the reason and said that they would solve any problems as they could. I know the reason why I don’t want to work there is because the people are not friendly, especially the one talked to me on phone. But how can I tell her that she is the key point that makes me sick all the time. However, they gave me a little bit higher hour pay than before. And though I’m not willing to work, I work for money.