Win Someone'S Trust

win someone’s trust یعنی «اعتمادِ کسی را جلب کردن/به‌دست آوردن»: You have to win their trust first. «اول باید اعتمادشان را جلب کنی.»

دیالوگ

if you're trying win the gir's trust, perhaps poisoning her one true love was the most splendid idea