The aliens mindwipe Rita after the perfect orgasm. If you pay attention, when you leave the ship your character no longer has any recolleciton of ever going to the ship and the cycle repeats. That's a big clue
Unfortunately, the payoff is in the unreleased Chapter 2.
You can go to the nightclub after speaking with Zoe and the location opens. It's when asking about the murder, if I recall. Talk to Freddy later about getting Bethe to audition there. I forget the sequence specifically, but the hints should help direct you. You cannot open the June/Bethe meetup and threesome until Bethe has a job at the TopHat.
I cannot stress how important it is to read all the context/interactions with characters as they happen (fast clicking through it, like one can with many VNGs doesn't really work with this, as it's very non-linear once things get going). In many situations, there is more than one way to achieve a goal. And as you score more partners/situations, you can almost always repeat them in some fashion (like photoshoots, sex, etc)
Hope that helps!