No, I don't think its the end at all. Keep pumping and get him to nurse as much as he's willing to at night. Are you giving him anything for the pain? Maybe some ear ache drops or mullein garlic drops would help.
I have managed to cure every ear infection my kids have ever had within 48 hours. I use mullein garlic drops and I also steam an onion, wrap it in a cloth and putting it near the child's ear for 20 minutes. It pulls all the fluid out of the ear. If you do the onion when he is sleeping in your arms, he will be nursing by the time you're done!
Hope your little one feels better soon!