Her "resolve" and specific bedroom events require reaching Corruption Level 4.
To increase her jealousy, perform provocative actions with other girls (especially Alex) while Sami is nearby. Cabin by the Lake Download [v0.14d] В» FAP NATION
Finding the note at noon and showing it to Alex is a key step. The solution to the note's puzzle is a nine-letter word starting with "C". Her "resolve" and specific bedroom events require reaching
A major path involves asking to borrow Lina's camera during a conversation with Jenny. Cabin by the Lake Download [v0.14d] В» FAP NATION
Jenny can be hypnotized using a pocket watch when she and Lina are by the tree.