"relate to one's involvement" — Kollokationen-Wörterbuch Englisch

Automatische Übersetzung (wir garantieren seine Korrektheit nicht): dotyczyć czyjś uczestnictwo
  1. relate Verb + involvement Substantiv
    Schwache Kollokation

    However, judging by his suicide note, he apparently had personal problems related to his romantic involvement with another man.