I misread that too, then thought, "Hey, that's impossible." So I checked it again.
At these low levels, it seems like some opponents will continue to bet out with anything even in the face of strength. And they don't seem to fold to raises either. I would say that these people are very inexperienced and haven't even gotten used to the idea that a raise means someone has a better hand than them. I would really wait on big hands to play anyone at your level and bust them as they will continuously make bad calldowns and bet into you after you show immense strength.
I would fold the flop, even though it looks like a pretty weak bet. Although, I did like your raise on the flop, although when called, I probably wouldn't put another dime into it unless I was in your situation. I like the call on the turn and I think you have to make that call on the river getting 13.5 to 1. Your opponent could have a busted flush draw like
or just air. Small chance, but it's a small cost compared to the flop and you get a little information.