Ever catch something that you have never noticed before?

I just had one of those moments watching Winter Wrap Up. I have seen it a bunch of times. Its a great show (with Awesome song!). Yet Spike says something at the very beginning that I always over looked...

Twilight pokes Spike a few times to wake him up. Spike mutters "Mommy ..." then looks up and sees Twilight then says "You're not mommy." almost like he was expecting to see someone else ... someone not Twilight ...

Spike did not think of Twilight as a mother figure at the beginning of the show and quite likely never did.

I am ashamed to admit it but ...

My headcannon ... she is broken... ;(