It is possible that he prefers the bottle. And it is NOT the end of the world! Especially if you are still pumping, he'll get the nutrients you want him to have from your milk, you're still extracting milk so it will still do your body well etc.
No matter what you can't allow feeding (no matter what type) to become an allover negative thing! I was shocked to hear that when I was trying to feed at the hospital. The nurses were teaching me that. The same nurses that are usually psycho about a mom breast feeding were telling me not to.
My daughter had a bowel movment in uterine and so they had to clean her out so many times, when it came time to feed she wanted nothing to do with it.
I had ever intention, desire etc etc to breast feed and was told I wasn't going to be able to. You can't beat yourself up over things like this! It lead to some postpartum that I was able to work though but I brought it all on myself.
As hard as it is, just keep going one day at a time. You can still feed him bottle skin to skin so you get that bonding time still! In fact that may be soothing to him... But also, get help from time to time as well. I know from experience (and I was NOT able to keep it up) that pumping and keeping up with that schedule of cleaning and feeding the baby and then pumping again, is tough! Be sure to take help when you can. Anyone can feed him the bottle...
Best of luck! ~T.~