Things can change.

Of course, we don't have the power to get things beyond our control. No matter how we tried to change a thing, it will never change and it will never be. It hurts, I know. But this instances will always make our life worth striving. This circumstances will always make us strong.

On the other hand, things can change. We should not speak to judge the final scene without watching the whole movie. There's nothing wrong with thinking positive, of course, in life's endless loopholes, thinking positive will be the best thing we could do. It's the expectation that makes the feelings scramble.