The normalized $\psi$(2S) yield and the ratio of normalized $\psi{\rm (2S)}\mbox{-over-}{\rm J}/\psi$ yields at $2.5 < y_{\rm cms} <4.0$ as a function of the normalized charged-particle pseudorapidity density in pp collisions at $\sqrt{s}$ = 13 TeV. Measurements are compared with the following models: PYTHIA 8.2, PYTHIA 8.2 without color reconnection (no CR), comovers. Quoted is the correlated event-class normalization uncertainty.