Is it cheating to use an AI girlfriend while in a relationship?

Whether using an AI girlfriend constitutes cheating in 2025 depends on relationship boundaries and partner agreements. Many consider it similar to pornography or fantasy - acceptable if transparent. Others view emotional investment in AI companions as emotional infidelity. Key factors include: level of emotional attachment, secrecy versus openness with partner, time and energy diverted from real relationship, and sexual/romantic content involvement. Relationship experts recommend open communication with partners about AI app usage. Some couples use them together for entertainment, while others establish clear boundaries. The key is mutual understanding and respect for relationship agreements.