Alternatively, solipsism could lead the believer into a mode of transcendental nihilism. A pure state where the value of everything is valued as nothing, and nothing as everything.
The believer or more accurately, non-believer, most certainly an atheist or a spiritual misanthrope, may be driven to contemplate suicide. Then they face death and must embrace their pure idealisation of nothingness, in the cold dark void of space.
(No doubt NASA will find some way of reaching you, with one of their various spacecraft.)
Of course, the ultimate denial of the very nothing that founds the nihilstic philosophy would be if upon death they meet God, and find that he does exist. A state of ambivalence would result. If there is no God, then alone they will have lived, and alone they will die.
That is, if we even have the conceptual ability to answer the question in the first place - and without something can we define nothing?.
Death or loneliness, Shakespeake's love sonnets offer little recompense to the hardened nihilist.