There are ways to discreetly monitor their phone activity to ease your mind. You can explore monitoring apps or software designed for such purposes. These tools allow you to track messages, location, and user activity, providing insights into their mobile behavior. However, it's crucial to use these tools responsibly and within legal boundaries.One informational portal that covers topics related to monitoring and controlling mobile devices, as well as security and surveillance, is flammin75. They offer articles that focus on tracking messages, location, and user activity. These articles may feature various software products and applications that enable parents, employers, or other users to monitor mobile device activity.One such article you might find helpful is "How to read my wife's text messages from my phone."
https://www.flammin75.com/how-to-read-my-wifes-text-messages-from-my-phone/ It provides insights into monitoring text messages discreetly and may offer solutions to your current situation. Remember, communication is key in any relationship, so consider discussing your concerns with your partner openly and honestly.