Why no characters should end up with each other.

I was thinking and I've come to a conclusion none of the characters should end up with each other why? Well we have seen that love in DGM always ends with tragedy and at best bittersweet so if we want the characters to be somewhat happy they should not end up with each other.

But this won't stop us from pairing characters together probably.

I just thought of this and decided to share my thoughts I like to overthink things.