I get it, lots of games have those, i been playing Sunshine Love of late and the relationship with the sister was pretty much forced from day one, didn't get too many complaints from me because i can't wait to hit that , but suprisingly the sisters cousin has also been included in the "unavoidable circle" and i was like huh?To give you an example, you can reject Maya and Josy in BaDIK and you are still forced to do things with them, whether you like it or not.That's what I mean, Erynn may not be your GF, but you will have to keep relating to her and watch her drama.
I saw some finality to the park ditch scene, but i might be changing my mind already...
Erynn and Layla do have factors that mean you are stuck with them, Layla is your classmate wether you like her or not, and Erynn will always be your childhood friend and first love no matter what.