You get the impression that his “mom” is interfering at first, but it’s all part of the great plan to trick the viewers so completely that you wonder what’s real and what’s not. Other than that character, there’s no one interfering. No second male or females who are trying to go after either of the two. No one really interferes in their relationship, it’s just the lies between them that interferes in their relationship. The FL is not a melo heroine at ALL. She’s soooo strong, I really love her.
The overall vibe of the drama was a little like Love Me if You Dare. I actually enjoyed FoE more, so I think you might like this one too.