The core issue

I believe the issue with canon is the characters as a whole.

As a whole hermione values her academics and knowledge and being brave

Harry inspires great acts of bravery in Hermione

Harry is the heart and Hermione is the head

As a whole Ron seems to value some bravery and popularity

He asked her as a last resort to the ball after asking someone else and lashed out at her when she was having fun.

And even when he got a chance to redeem himself with slughorn’s Christmas party he didn’t take it because Hermione had one meaningless kiss when she was fourteen.

He intentionally hurt hermione by dating lavander, he meant to make her cry.

Not to mention if you take cursed child into consideration, the only reason they got together was because hermione was all dolled up at the ball and with someone else having fun even though he was never with her.

Whats the better balance? Brains and bravery or intenseness and relaxedness?

And also I don’t get that “Ron is loyal” thing people always say.

Sure he comes back after leaving, but if you had a partner and they cheated on you, are they loyal for realizing their mistakes and crawling back to you?