Nah, her feelings for Mark swayed ever since she started getting more work. When she first entered the industry, she was going gaga over him. Next thing you know, she deleted the first batch of pictures she took with him on IG. When there was news that she first adored Mark, she quickly said that was in the past but now she's more mature and only enjoys his acting, plus she adores other actors too, not just him lol. It's like she's afraid to be associated with Mark despite that she was actually gaining a lot of fans from him in the beginning. There's nothing wrong with admitting to be a fangirl of someone so I don't see why she seemed annoyed lol. The funniest thing is she once told a fan that she's never got the chance to watch Kim's lakorns but yet she claims that she's watched all of Mark's lakorns haha.
I don't know the exact reasons why she's eager to work with James Ma but I do know that she's easily influenced by her fans and admins. If they cheer for her to work with someone, they'll find anyway to make it come true. If I were to make a logically guess, she wants to work with him because he doesn't have an official koo kwan yet. As for Nadech, she's likely scared of the fans.