Lets look at it like this. When we get into a relationship, we don’t necessarily do it for a gain. We form a bond because the person means something to us. Often as a parent or a child, we continue to love despite the frictions or negativity. The reason is simple - we love them. Well, if we gain from that relationship - that’s a bonus. If the person loves us in return , then we are very lucky. But we love them all the same. Our faith in God is also like that. We love and believe in Him because He is our own. That he loves us is indisputable. In fact, we are the ones who spread negativity in this relationship and refuse to love him. He continues to care and nurture.
Actually putting your implicit faith in God is an act of courage & wisdom. It requires that you put aside your pride and place your complete trust in another being knowing that He will take care. It takes a certain emotional mettle to be able to decimate your faith in your own intelligence and prowess and believe implicitly that there is a power greater than you in your life.