Help needed for breastfeeding

I'm devastated. My 11 week old son has stopped nursing, for the bottle. I just had gallbladder surgery on Friday and had to stop nursing for a few days. I had a stash of breast milk which we used suplimented also by a few formula bottles...he won't go near the breast now. He fights and cries because he's not getting that instant gratification the bottle gives I give up? I've tried giving him a few mls from the bottle and then trying the boob but he still fights. I'm so upset over this any ideas would be appreciated.