Poor Janward that people think she is a bad character. Lol...at first people in Thai also said the same but somehow it is changed after 8 episodes (after her story with Reung started). Her character is actually well loved now in Thai on twitter and IG..
First of all, Janward is a hi-so noble woman. She is a bit arrogant at least to Kade. Coz Kaderakade was bad to her too. But she is gradually warming up to Kade since she is not the same woman anymore. At the end of the day, Janward and Kade become good friends.
Second, she had a crash on Date. Dad as well was having infatuation with Janward. It was reciprocal. If you notice, it was always Date that stared (Chamoi Chaita
) her first. When she noticed, she replied him with her chamoi chaita too. It's not fair to blame her.
Third, her father and mostly her mother encouraged her to visit Khunying Jumpa. Everyone at Date's household loves her. When she knew there is no way Date will love her. She rebelled with her mom and withdraw herself from the mess.
Forth, she is human after all. That's what the director and script writer want to show (Prang gave an interview about it). So she can love someone and express love in her own way. Her lying to her mom was influenced by Kade who is a modern woman. Kade also influenced Rueng to spy around Janward's house. I find it adorable how Kade is able to bring modernity to these Ayuttaya's people.
What made people feel she plotted something bad coz it's in the mindset of Thai lakorn viewers who always feel there should be a n'rai in a lakorn. Janward was just to supposed to be an elegant, lady-like, arrogant at some points but without bad intention. So don't think too deep..