Adamantly ambivalent or doggedly indecisive?

I used to think I was adamantly ambivalent until some knucklehead suggested I seriously consider if I could care less. Now, I think I may just be doggedly indecisive, but don't know if I care whether I make up my mind or not. Can anyone out there help me? I'm clearly confused. Just don't say I'm breathtakingly oxymoronic, or I'll sic the YA trolls on you.