Yeah, I was full-on onboard with Jenna for my first few runs, but the more I replayed the game, the more I felt bad for Elly. Sure, she adapted because she had to, but you can tell from her reactions and glances she initially wasn't really enthused about Jenna's involvement.
Here's hoping the 5th route will be a scenario in which Jenna never visited and Elly gets the cute fluffy romance ending she deserves (yeah, highly unlikely, but one can dream. Still a little sad/salty Elly's route ended after their romance overload seaside dinner + first time and then turned into Jenna's route + Elly add-on instead).