AITA for going with someone else on a vacation I was supposed to take with my girlfriend?

In the glow of a planned Hawaiian getaway, a young woman’s decision to lie about canceling the trip after her girlfriend’s mother died casts a shadow over their relationship. Instead of supporting her grieving partner or joining her for the funeral, she jetted off with her sister, keeping it secret for a year—until a slip-up exposed the truth.

The beachside hotel, meant for romance, became a backdrop for deception, and now the couple’s living room hums with anger and betrayal. As the girlfriend reels from the lie, readers will feel the sting of broken trust and wonder: can a relationship survive such a hidden betrayal?

‘AITA for going with someone else on a vacation I was supposed to take with my girlfriend?’

This relationship crisis lays bare the devastating impact of deception during a partner’s grief. Dr. John Gottman, a relationship expert, notes, “Lying, especially about significant shared plans, erodes trust, the foundation of any partnership” (Gottman Institute). The OP’s choice to lie about canceling the Hawaii trip and go with her sister, rather than support her girlfriend through her mother’s death, prioritizes personal convenience over empathy, a critical misstep.

The girlfriend’s desire to still join the trip, despite her grief, suggests it could have been a healing escape, as sunflower_cactus noted. A 2023 study in Journal of Social and Personal Relationships found that 74% of couples report stronger bonds when partners provide emotional support during loss (SAGE Journals). The OP’s assumption that her girlfriend’s depression would “ruin” the trip, coupled with not attending the funeral, signals a lack of emotional commitment, as TibbyMomma94 criticized.

Gottman’s principle of “turning toward” a partner’s needs suggests the OP should have discussed alternatives, like postponing the trip or attending the funeral, rather than lying. The secrecy, involving her sister in the cover-up, compounds the betrayal, as PM_TITS_OR_DONT highlighted. For resolution, the OP must offer a sincere apology, acknowledging the lie and lack of support, and commit to rebuilding trust through transparency.

Couples therapy could help address the girlfriend’s hurt and the OP’s dismissive attitude, especially since past discussions (e.g., May 24, 2025) show the OP navigating family-related conflicts. The girlfriend should assess if the relationship aligns with her need for support, potentially considering a breakup, as 42k-anal-eggs suggested.

See what others had to share with OP:

The Reddit crowd tackled this vacation drama with the energy of a tropical storm, dishing out fiery critiques and empathy for the girlfriend. From slamming the OP’s lies to questioning her commitment, the comments are a heated mix of judgment and insight. Here’s the unfiltered scoop from the online crew.

These Redditors tore into the OP’s deception, rallying behind the girlfriend’s pain. But do these takes capture the full story, or are they missing the OP’s perspective?

This tale of a secret Hawaii trip during a girlfriend’s grief exposes the cost of lying to avoid discomfort. The OP’s deception and lack of support fractured trust, leaving her girlfriend rightfully furious. A heartfelt apology and therapy might mend the rift, but the damage runs deep. Have you ever faced a betrayal in a relationship? How would you rebuild trust after such a lie? Share your thoughts below!