Ok I have been working on using subliminal messages for the last 3 nights to convince my wife to swing

It's important to approach sensitive topics like swinging or any changes in relationship dynamics with open and honest communication. Instead of using subliminal messages, consider having a direct conversation with your wife about your feelings and desires. Ensure that both partners feel comfortable discussing their boundaries and expectations. Having mutual understanding and consent is crucial in any relationship. If it's a topic that interests you both, maybe you can explore it together in a respectful way.