Not as Eager to Volunteer

I'm usually the person who would be one of the first to jump at opportunities to help, especially when there is a need; and often, even without having to be asked. So, I am struggling with what to do, since there is a need now; and this is a rare occasion where I am not so eager to volunteer. I ask myself, "What is the right thing to do?" That's a harder question to answer than "Why am I not eager to volunteer?" I already know why I am not eager to volunteer. It's because the person who oversees the area does not motivate us to want to help. In fact, he did the exact opposite by criticizing and offending. He made us feel like we were expendable and not needed. And when he tried to show appreciation, it was in such contrast to his previous actions and words, that we're not sure if he is sincere. So, if he doesn't consider that what we do is important, then we are no longer motivated to go out of our way to make sacrifices to help, as we have in the past. As for the right thing to do.... well, I know that I am serving God. So, if there is a need, I should not let one person deter me. I suppose I will no longer go out of my way; but, if I am able to, I can. So, I guess that answers the question. I will go ahead and volunteer. And I just need to make sure that the fact that I am not as eager, does not get in the way of my heart to serve.