The physics of a quantum dot coupled to a superconductor is governed by the interplay of the dot chemical potential, its charging energy, and coupling to the superconductor. This interplay results in either a spin-polarized doublet ground state, when the charging energy is significant or a spin unpolarized singlet ground state when the coupling to the superconductor dominates. We use van der Waals semiconductors as tunnel barriers separating the superconductor NbSe2 and normal counter electrodes. We find that defect states, ubiquitous to the semiconducting barrier, hybridize with the superconductor and form Andreev bound states, which are observed in tunneling experiments. By the application of magnetic field, we show that these Andreev bound states have a singlet ground state, consistent with a small charging energy. We argue that the screening from electrodes is significant in the reduction of the charging energy. Finally, by tuning the ground state using a Zeeman field, we drive the system in the Condo regime.