Those 2 scenes are with Jessica, you have to go back to Episode 3 and choose to not risk your relationship with Jessica.
Yeah the guide I used made it clear that's a main branching patch, risk it with Skyler or not, and to keep a save there. I usually prefer seeing everything in one run but it's a cool detail. Skyler is 100000% cooler than Jess so it seemed silly to worry about upsetting her haha.
*Minor spoiler theory* But I'm so damn curious, it's obvious she also found the time travel cave but at the same time idk, time moves the same in both timelines so having both sleeves doesn't make sense if it's meant to imply she was gone for longer than she was, unless she was gone months and time traveled back to the present haha? Hopefully more of the girls get tied into the main story, that's my main nitpick with the otherwise amazing game is 90% of the cast is unrelated to the story