I know the history of Targaryens by pin to pin,but Daenerys was not an evil at that movement she got no choice,she already conquered everything and cersie was the final boss so after talking down cersie it's like she conquered whole world and everyone would have bend their knees to hers without hesitation so what's the point of killng if there nothing to conquer,John snow could stayed by her side change her into better person but he chose to betray her,not all Targaryens are evil there some good and noble characters
Before little hobby,he mentioned he stared boxing in preparation for sculpture city