Bongwater

Serena burns down David's house during a fight right before she leaves for New York. She's frustrated with David's lack of ambition and decides to leave with Tommy. The fire represents her final act of rebellion and destruction, she can't leave him with the home he refused to improve, so she takes it away entirely. This dramatic act marks the definitive end of their relationship.

Serena is date-raped at a party in New York while attending with Jennifer. This traumatic event causes her to confess to Jennifer that she wants to return to Portland. The assault is depicted subtly through the narrative but represents a dark turning point that propels her back home, fundamentally changing her arc in the story.

Serena leaves David because she becomes frustrated with his lack of ambition and drive. She encourages him to pursue an art career, but he remains laid-back and unmotivated. Tommy represents a different kind of energy, a punk rocker heading to New York, which appeals to Serena's desire for excitement and change. She chooses adventure over stability, believing she needs to escape David's inaction.

The UFO appearing above David and Serena on the rooftop is deliberately ambiguous and surreal. It occurs right after their reconciliation kiss, suggesting a moment of cosmic or supernatural approval of their reconnection. However, given the film's overall tone of uncertainty and drifting, it could also be interpreted as another drug-induced hallucination or simply a whimsical detail that leaves their future unresolved.

The LSD scene earlier in the film establishes that David experiences hallucinations, making the UFO's reality questionable.

David begins a romance with Mary after Serena leaves. Mary was introduced by Serena and is the daughter of a local gallery owner who falsely claims to be an art curator. Their relationship develops during a hike in the woods, and David moves in with Mary along with his friends. The relationship represents David's attempt to move forward after the loss of his home and Serena, though Mary herself may be involved in deception about her professional background.

When Serena returns to Portland after the assault in New York, she discovers David and Jennifer having sex. This heartbreaking moment discourages her from immediately reconnecting with her old life in Portland. The discovery complicates her potential return and forces her to confront the reality that her old relationships have moved on without her.

David experiences the hallucination of his deceased mother while taking LSD with Devlin in the woods. During the acid trip, his mother appears and brings him lunch, blending memory with surreal imagery. The vision seems to represent guilt, longing, or unresolved issues about his mother, who is deceased. The scene occurs while Mary marches through the woods with Devlin, leaving David alone with his psychedelic experience.

Serena wants to return to Portland primarily because of the trauma she experiences at the party, she is date-raped and feels unsafe and violated in New York. She confesses to Jennifer that she wants to go home, seeking the comfort and familiarity of Portland after her difficult experience. The assault, combined with her existing frustration with Tommy's paranoia, makes her want to retreat to what she knows.