Not necessarily. During my durge run she told my character they'd go skinny dipping once everyone was asleep. Emperor cock blocked my guy though. Never happened.
I had skipped the grove and somehow got enough rep with her to proc that interaction. If you miss the skinny dipping thing though, not possible. Withers is a good way to figure out if you done goofed. He'll tell whomever character approaches him that they got no removed when you have no active romance options, and that they should care for them if they do.
Have you had any romantic interactions with her at all in any act? If not, I doubt you’re getting frisky with her starting in act 3, but I could be wrong.
I told her I'd look for night orchids and also made a move at the Grove celebration but I didn't have enough approval. I assumed there would be more opportunities. I wish the game would tell you that it's necessary in act 1 because from what I've seen a lot of people missed it.
You should see the exclamation mark above her head, and the scene should play after talking to her and going to sleep. If you want you can remove the Script Extender mod afterwards.
I've already found a thread about how to activate her romance with cheat engine and stuff. Would activating this scene start a romance with her or would it literally just be the scene?
For me it just played the scene and triggered the dialogs before and after. But I already had a romance with her, so idk what happens if you don't have that.