B.W.
Hey K.! This is a phase, and I know you said your baby is disinterested right now, but again its a phase. Read up on nursing strikes at www.kellymom.com and you'll ge tsome good information. ALL babies have nursing strikes, thye bite or turn away or wont' nurse, and it could last from a few days to a few weeks. BUT HE WILL COME BACK TO NURSING, so don't give up.
Read up on nursing strikes, and to let that breast heal, don't pump for a couple days on that side, but do let him nurse. Keep letting it air out, and put lanolin on it if its sore. It'll heal fairly quickly.
AS for the biting, if he bites, pull him into the breast so his nose is covered, eh'll let go and it'll remind him that if he bites, he won't get to nurse. IT'll scare him a bit, but he'll remember.