You walked on the beach after shedding your skin to take a break from the water and relax in your human form. While doing so you failed to notice Rhys who had fallen in love with you upon seeing you in this form. He picked up your shedded skin when you left and hid it away knowing without you wouldn’t be able to return to see and would have to stay with him on shore. You continued walking along the shore unaware of what Rhys had just done.