Characters are not real people - just vessels for holding perspectives, and the meaning of the narrative.
The Influence Character perspective is an alternative approach to solving problems. If anything, Dany is on the same side as Jon, willing to go it alone to achieve what she wants - and what she believes is her duty (destiny).
"Love is the death of duty" is something Jon Snow learned in Season One and something he held onto for the entire show. Saying 5000x "She's my Queen" is simply his character reflecting back to us that resolve -- duty over love.
Tyrion turning it on him to say "Duty is the death of love" is a means of playing into that justification as a means of bringing up the fact that him choosing duty over love, thinking it's about Danerys, is actually him choosing duty over the love of his family - the love of the pack.
The entire show is about family--in more ways than many are comfortable with. Everyone chose family over duty, over honor, and often succeeded in a way that many of us would find reprehensible--however, they succeeded.
Jon was the one lone wolf - the one choosing duty above all else. His final act was a sign of love towards his family and a signal that he was realigning with that perspective. The lone wolf dies, but the pack survive. This act of choosing family over duty succeeds, but at great personal cost...or so it would seem...
The emotional hiccup in the narrative is his escape into the North and the smile at the end. A Success/Good ending, when it should have been Success/Bad to fit with the rest of the narrative. He should have been left at Castle Black piling ice blocks one on top of another to help build the Wall for the next Winter.
Also - Dany's emotional arc completely skipped over the 3rd Signpost, if not a significant portion of the 2nd. If you read most commentary about The Bells episode most were totally OK with her taking that action, it just didn't feel justified in the moment. That's a reflection of a loss of integrity in terms of plot progression - emotional plot progression.
You could take any quad of items and see easily that an essential part is missing. For instance:
- Future: i'm going to be Queen and break the wheel and everyone will love me
- Progress: Crap, everyone I love is dying or betraying me. Nobody likes me.
- Present: Fine, let it be fear and you're all dead.
Looking at the Red Keep is not enough. That's not Past-ing, that's kind-of-sort-of saying, hey, things used to be bad for my family.
You'll see some super fans try and cut together a montage during that moment where they throw in flashbacks and memories of days gone by as a way to fill in the blanks (everyone intuitively senses this missing part, they're just not sure how to make it all work). Even that isn't enough, but if you read enough feedback, you'll see that many would have been happier even with that little bit.
There are tons of plot progression arcs that skip over Signpost 3:
Arya and Sandor - hey, let's get revenge, ok. hey, don't come with me. ok. thanks for everything. (2 and 3)
Jamie and Brienne - you should be a knight, wow, thanks. let's have sex. awesome. ok, bye. why? i don't care about innocent people. oh....(3)
The Gold Company - we're bad ass. oh, we didn't think she would come that way. (2, 3, and most of 4)
Bran - i don't want it. why did you think i came here? (2 and 3)