Hey, thank you for the comment!
I understand it takes away some player choice that you have an established friendship with one of the characters, but it is somewhat necessary for the plot. However, you can make decisions and react to their actions in a way that lowers friendship, the game will comment on your bond not being as strong as before, but it will not limit your gameplay outside of dialogue/how the character treats you.
Your comment made me think about maybe adding an option at the beginning that your bond will be either high or low, but I'll have to see if that's possible.
Thank you again for your feedback, I really appreciate it <3