The problem is, which I hate to say because it's at least partially a cop-out answer, is that the characterizations have been woefully inconsistent throughout. Sometimes they adhere to the books' characterizations, unless it doesn't serve the plan to get to the spectacle in the penultimate episode, sometimes they are writing their own character and sometimes they show they have no clue what's going on with the book characters. Honor is dumb and gets you killed, that's what happened to Ned & Robb, and the rest of their family have to learn to move past honor and be ruthlessly pragmatic. Bullshit. You could see in book 1 how the honor of the Starks was influencing other characters. Sandor never deserts the Lannisters, never tries to save Arya or find peace on the Quiet Isle, if Sansa doesn't tell him that knighthood is about action, not a ceremony. Barristan never holds a coup in Meereen, never gives us the line "Fire and blood" if he doesn't spend most of a book with Ned Stark, seeing an honorable man trying to save an unworthy king. There are no vassals, loyal past the point of sense, marching through blizzards to save Tywin Lannister's children. Renly is a charismatic & beloved leader while Stannis has the personality of a lobster, but only one of those men gets people to cross a makeshift floating bridge over a burning river to attack a city or follow him to the literal ends of the earth.

So Daenerys in the books...she might, at certain points in her arc, have that impulse. She might think that this is one of her three treasons, and to shove him off the walls or feed him to Drogon before he can betray her and take her throne. She might have had it up to here with all this northern defiance and look ahead to see the dissenters to her reign rallying around her brother's son instead of herself, even though she brought the dragons and army to defend them, and she lost one of her children rescuing his friends from the White Walkers, and in the mindset at the end of DWD, she just might be thoroughly done with all this trying to make her subjects happy, because a dragon plants no trees. Maybe they are even copy-pasting an element of her reaction to fAegon from the book plan, where I assume they are going to be enemies, in spite of the plans laid by Varys & co and assurances of Tyrion, because the same prophecies of her three treasons and three mounts and three fires also called her "slayer of lies" and showed her an image that plainly represents fAegon, combined with Quaithe's warning to beware a list of people including "the mummer's dragon".

And in her show characterization, there are her dramatic lines about burning everything down and breaking the wheel, but her specifically stated goals in the show have been to keep the wheel rolling, just with her on top, on the Iron Throne, and she's still making that a priority. Waaay back in 2000, when Storm of Swords came out, Stannis came north to fight the Others and defend the realm, and stated outright that he had been taking the wrong approach, prioritizing his rights and his need for validation ahead of the needs of the kingdom, that he was trying to save the kingdom by taking the throne, when he should have been put saving the realm first, because that's what a true king does. Dany...still isn't there yet. She's still insisting on her rights and prioritizing the Iron Throne, and that seems to be the writers' agenda, too. The battle against the White Walkers is upon them, but the show is still building up Cersei as an antagonist down the road. The four-episode-long road. Clearly once the army of the dead is defeated, and many many regular actors have died horribly, heroically or tragically, Jon, Dany and the survivors are going to be facing down Cersei, with Euron's fleet and the Golden Company (and no unborn baby to make killing her problematic) with some sort of cynical commentary about how this is the thanks they get for saving the world, but the deus is going to come ex the machina to save the day and the remaining conflicts will be resolved by a Jonerys wedding.

So maybe she, right now, is pissed as all get out that the one guy she thought she could trust, who told the whole realm that he was sworn to her, is revealed as her biggest obstacle to the Iron Throne. Kill, probably not. But they keep seeding conflicts between the two that I think are intended to present the audience with a Gordian knot that only their marriage can solve, so make the ending that much more satisfying.