The truth is Aries and Leo are two partners who have genuine admiration and respect for each other, but they need to learn how to take turns in issuing commands and delivering orders...even when they are simply deciding which movie to see. Natives of both Signs can be impatient and proud.
Leo individuals love to be adored and relish having their egos stroked. These are services that the easily-bored Aries may not always want to provide. Moreover, the Aries partner may be bothered by the flirtatious nature of Leo.