My Little Pony: Friendship is Magic, Season 8

Twilight Sparkle:
It's nice to have someone show your Dragon culture, but are you sure that is what Sludge is doing?

Spike:
What do you mean?

Twilight Sparkle:
Well... taking over your room, making a mess of things, hoarding our possessions...

Spike:
[blows raspberries] That is dragon culture, he's showing me how dragons claim territory for themselves.

Twilight Sparkle:
You never acted like that.

Spike:
That's because you raised me. Now I finally have a chance to see how I'm supposed to be.

Twilight Sparkle:
[remembering spike as a hatchling] I know that I've have not been a perfect mother... I don't think you're supposed to be any different then who you are.

Spike:
Maybe you just don't like that I have a real parent now.

Twilight Sparkle:
[heart breaks] That's not true! I'm glad Sludge is here. I-I just wish he wasn't such a—

Spike:
Dragon? [disgusted] Of all ponies, I can't believe you would have a problem with that.