Relationships should start privately so the decisions you make are genuinely what you both want. Secret relationships make it easier for someone who wants to be unfaithful to do so, without being caught by their partner. Theyll be able to cheat freely, while their partner is completely unaware.

What is the difference between private and secret?

As adjectives the difference between private and secret is that private is belonging to, concerning, or accessible only to an individual person or a specific group while secret is being or kept hidden.