Rule reminder
Tonic pronouns (me, te, lui, lei, noi, voi, loro, sé): required after prepositions, for emphasis/contrast, after comparatives/come/quanto, and as reflexive 3rd person 'sé'. Unstressed forms (mi, ti, lo, la, ci, vi) are for neutral use before the verb only.
Tutta la colpa è ricaduta su di ___.