I followed a post comment on reddit and found the above video.

I like that romantic love was an option in this game and it wasn’t all about the sex alone. It’s about two cousins stranded on an island. One of the endings has them as a couple and making a family. 🙂 I love how the guy reflects at the end that they’d have to get off the island eventually, so that their kids could see the world and decide what they want. It’s an acknowledgement that just because someone is in an unconventional relationship doesn’t mean they would hold their kids back from having options of their own.