I'm not going to bother replying as it's plain we simply see completely different characters at this point, all I will say is G'raha is by no means perfect, it's why I like him, but 5.4 onwards also isn't the Exarch, it's him and his younger more dramatic self, which Beq Lugg even eludes to him still very much being just hidden under the vail of the man he's tried to become to suite the role thrust onto him.
Even as the Exarch, if you directly chose to question why he chose you, he gets very emotional, not unlike his 5.4 self, so that level of emotion is within him even before he fuses with his younger self.

All I'll address is the cave as I really don't know what to say, all he did was re-enact his first meeting with you, and regardless of your response he doesn't prolong it and drops it pretty much immediately, somehow implying this could lead to him attacking or worse the WoL is just... it honestly just feels because you don't like him anything he dose is turned up to 11. We've been forced into dinner dates, had characters all over as and straight up propositioned depending on your language choice, but G'raha apparently takes the award for "Creepy, stalker and potential sexual assault case" ...right....