So two things, first a maybe bug, second a suggestion.
1. It looks like I have unlocked the ability to get past the big lizard, it says he's using Cath's idea but she never suggested anything that I saw. I am at the point in her story where she's not around for a few days to talk to so maybe I was supposed to have unlocked it already?
EDIT: So literally the next in-game day after posting this I got a text from Cath with the suggestion of what to do, so looks like yeah, the option unlocked early? However the scene with the lizard then played out without my starting it, with the phone still up and in the ship bedroom.
2. For the flowers, I think it would be great if you could get Reyna to tell you the type of person that likes a flower again, like have it cost another flower or something maybe. I didn't think to write the first few down and now it's just a guessing game or I look at the guide.