Impulse
Disclaimer: I don't know HA! Nick does.
It was on an impulse that she had to love him. There was no other way in life. She couldn't stop her passion, her dream, and her life. Arnold was all she had to truly exist, in a sense, he woke her up from the nightmare she had in the beginning of her life. She was truly alone, before he came into her life.
She was born to love him, but her love was an impulse, that she had to suppress. For who could ever love her the way she is?
Helga knew not how to be herself. She was afraid of rejection. But there could be no rejection in her dreams.
So she slept onwards on her dreams, about her impulsive love of Arnold.
For Arnold shall truly not know about her impulse in life…