As a kid, Dante was very demanding of his brother's attention. He'd even cry to attract their mom, forcing Vergil to surrender to his demands.
Dante today just takes whatever Vergil gives. There's no fight left and he hates that.
But they've got time, and Vergil never gives up.
It does feel like Baelor misjudged how Maekar would fight, likely bcuz they’ve never actually been in a situation where one of their kids lives is at stake. He knows how his brother fights, but he was planning to fight the Kingsguard then has to hold back Maekar the whole fight
We talked about Baelor losing his memory so now it's time for Maekar. Maekar who cannot make new memories (lost after few hours) and does not remember the trial nor that he lost both Daeron and Aerion. Baelor of course feels immense guilt and knows Maekar would never forgive him