While the lyrics are just a snippet, we can speculate on the possible thoughts and background behind them based on the themes present:

Themes:

• Confusion and Uncertainty: The lyrics "I didn't think you'd understand me" suggest a feeling of being misunderstood and a lack of clarity in the relationship.
• Fear of Conflict: "Don't wanna tiptoe but I don't wanna hide" reveals a desire for honesty but also a fear of confrontation. There's an underlying tension and fear of escalation.
• Desire for Resolution: "I don't wanna feed this monstrous fight" shows a longing to resolve the conflict and prevent it from growing bigger.
• A Need to Move Forward: "Just wanna let this story, oh, ti-ti-da, right" hints at a desire for closure and the acceptance of whatever outcome is coming.

Possible Background:

Based on these themes, the lyrics could be about a relationship in a state of turmoil. It could be:

• A Romantic Relationship: The lyrics suggest a deep connection that's been strained. Perhaps there's been a betrayal, a misunderstanding, or simply a growing distance that's causing conflict.
• A Friendship: The lyrics could describe a friendship that's become complicated. Maybe there's jealousy, competition, or a difference in values causing tension.
• A More Abstract Relationship: The lyrics might be metaphorical, representing a conflict within the speaker's own mind or a battle against a personal demon.

Overall:

The lyrics convey a sense of vulnerability and a desperate desire for understanding and resolution. The "we can't be friends" title suggests a painful realization that the relationship, whatever it may be, has reached a breaking point. The "demo 2" title adds a layer of intrigue, implying that this version is not the final product and perhaps there are more layers to the story yet to be revealed.

Ultimately, the true thoughts and background behind these lyrics are only known to Ariana Grande and her collaborators. However, the snippet offers a glimpse into a complex and emotionally charged story that likely resonates with many listeners.