The mashup of Ariana Grande's songs "Boyfriend," "Thank U, Next," "Fake Smile," "BUWYG, IB" (Break Up with Your Girlfriend, I'm Bored), and "7 Rings" performed by V5 explores various themes related to love, breakups, personal growth, and self-confidence.

In the song "Boyfriend," the lyrics depict a complicated non-committed relationship where both parties don't want each other to see anybody else. This can be seen as a reflection on the complexities and ambiguity of modern dating. It emphasizes the desire for freedom while hinting at the potential jealousy and possessiveness that can arise in such situations.

"Thank U, Next" expresses gratitude for past relationships and the growth that comes from them. It suggests that each failed relationship serves as a stepping stone in the journey towards self-discovery and self-love.

The song "Fake Smile" delves into the struggle of hiding one's true emotions and pretending to be okay when going through difficult times. It acknowledges the futility of putting on a facade and emphasizes the importance of authenticity and emotional honesty.

"BUWYG, IB" (Break Up with Your Girlfriend, I'm Bored) explores the feelings of attraction and temptation towards someone who is already in a relationship. It suggests the desire to break free from monotony and seek excitement, even if it means causing someone else emotional pain. The lyrics address the contradictory emotions of wanting someone who is unavailable but also acknowledging the wrongness of the situation.

Lastly, "7 Rings" celebrates self-confidence and independence. It showcases a luxurious lifestyle and the ability to obtain whatever one desires. The song embraces the notion of self-gratification and empowerment, emphasizing that the protagonist can have anything and everything she wants.

Overall, this mashup captures the emotions and experiences associated with love, heartbreak, growth, and empowerment that are central themes in Ariana Grande's music.