Confused

I'm so confused with this story. What was the point and plot? First why don't Landon hire a private investigator or why didn't Jeremy suggest using scorpion? Why Landon take Melody to that sex club and allow Jeremy to watch them have sex. What was the point? I understand that it was Melody's fantasy, but its just a fantasy. So had Melody said she wanted to have sex with another man, would Landon have fulfilled that fantasy as well. Just a dumb storyline, thank God it was only .99

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