He's more jealous of Spike the Second, for stealing his name. Never mind that the two of them fulfill completely different rolls, Spike's never been particularly rational about his place in my heart.

[Says the girl who freaks out apocalyptically whenever she thinks she might have disappointed a certain Princess.]

As for his thought reading- Ohhhhh, right there, Bell... Er, as I was saying, just because he can doesn't mean he does. Who do you think instilled him with morals?