When it comes to "matters of the heart" or even just plain human interaction, Fraser is more than capable of getting things very very wrong because he is what you're called a "biased narrator"

Oh, absolutely. He has just as many biases as anyone, but he's also very good at covering for them.

Although I'm inclined to think that at least some of his issues with human interactions are deliberate, that he uses his otherness as a defense mechanism.

Either way, I'd love to see more people working with Fraser as an unreliable narrator. Not that I don't enjoy Ray's pov, but Fraser-the-infallible isn't nearly as interesting.