Emily acts strangely
While Mark wrestles with his suspicions, Emily begins to act strangely around the house. She seemed more secretive, her conversations filled with half-answers and deflections.

She double-checked locks, hid her phone, and moved with an air of caution. Mark watched her closely, noting every unusual behavior.
The house, once a sanctuary of love, became a battleground of mistrust. His observations only confirmed that something was fundamentally wrong.