That other person will forever be connected to you. Always be amidst their storm, as a true votary of the Lotus Sutra.
They may very well choose to ignore the light of the Mystic Law, which you shine ever so brightly and crash upon the rocks.
But you will still and always be there for them because this is the humanistic principle of Nichiren Buddhism.
Abandon no one. When you chant Nam Myoho Renge Kyo, you are the light that guides all others in all storms of fundamental darkness.