In Figure ), we show phase diagrams obtained by varying the permititvity of the complex phase, while keeping the permittivity of the supernatant at ε r ≈ 78. A decrease in permitivitty amplifies electrostatic interactions between all charged particles. The cohesive effect of electrostatics not only extends the two phase region, but also causes preferential partitionig of NaCl into the phase of the complex at ε r ≲ 52. This is in line with recent experiments and simulations which acknowledged that the partition coefficients of NaCl can indeed exceed unity if they use short-range attractions between ions and polymers. 131 This, however, unveils a problem -our simulations and those in Ref. both observe qualitatively the same trend in partition coefficients of NaCl, but for different reasons. Even though our model has just a few tunable parameters, it brings about a lot of flexibility and one has to be careful when setting the model parameters to identify the correct source of phenomena with respect to the specific experiment, and to avoid over-fitting.