First time diving at a dive lot and my sim met Triton King who showed her to her very first hidden island, became her best friend, then they got married. He's quite the catch of the day with six points in painting, mastered diving and a couple of points in guitar. He's also got nice traits with Over-Emotional, Virtuoso, Loves the Outdoors, Loves Swimming - and I've forgotten the last one. He's also on the white/black color slider. But since meeting him I haven't encountered any other mermaids at all.