Aela and Farkas won't stop attacking me!

[Mahone]

So I was coming in to Whiterun, and I went to attack the giant that the companions were killing, but I accidentally attacked Ria. I didn't get any bounty, but they are attacking me. I went into whiterun, and I tried attacking them back, but they won't die. But, Aela accidentally, (or not) hit Ria with an arrow and now Ria is dead. But now Farkas and Aela won't stop trying to kill me. I'm using xbox so i can't use mods, and please don't tell me to reload a past save, only if it's the ONLY thing i can do. Thanks if you have any answers.

 

[Dagmar]

I'm assuming you already tried yielding but if you haven't already done it, try and yield to them (i.e. sheathe your weapon). Most normally non-hostile NPCs will revert back to normal if you leave the area and come back a few days later.