The relationship thing with the characters will be determined at some point. Let's say your relationship points with amber and Allison are equal. And let's say you can't decide which girl you should go out with and have a romantic relationship with. You will be able to get to choose which girl you prefer. You might want to avoid both of them too right? Then do that. Or you might want to be casanova and say "You know what, I don't want to decide. Let's get them both!" Then do that.

But I should also point something out. We can't make that kind of plot for each and every character in the game. But there are gonna be other ways to avoid those characters as well. For instance, Let's say 0.8 is focused on Vanessa, Amber, and Maeve. That version alone will give you a chance to choose any girl you want.