Yes, not every event influences the following one, which would be a pity in this case. Because for me it would be such a good reason why Sophia would tell Dylan about her first time. And in the process telling him some details that mothers might tell their daughters but never their sons.Although it would be a nice narrative, she is already coaching with or without Marie's involvement, which is being pointed out here. She is already in the "Sex-Ed" state with Dylan from the moment the reader chooses this at the bikini pool scene with the sunscreen and the deck chair talk, and she wants Dylan to have a girlfriend.
Plus, per my understanding, each event doesn't influence the next event that follows except the filth or good wife points and things that are somewhat tied into each other, like the boarding school path, until the first solution.