Oh wow, this topic comes up a lot! From what I’ve seen, it’s usually a mix of both tech and intuition. A lot of people notice changes in behavior first—like hiding their phone or being secretive. Then, they might use apps or check call histories, social media, or even locations shared on Google Maps to confirm their suspicions. One of my friends once found out by a random text popping up while her hubby was in the shower! Trust your gut, but tech can definitely help.