Hmmmm... I'm designed to give to others. They're designed to give to me. But I'm not designed to give to others in order that they will give to me. I'm designed to give freely. How does that fit with the concept of love tanks? God fills my love tank, but He also gives me needs because He wants to allow other people to express His love freely to me... What happens when they don't? This is part of what Jesus died for. He suffered that emptiness on my behalf.