Homura will wait until they are even further away than this before she starts trying to figure out what the hell is happening.

And then Madoka breaks out into reality - normal reality - bright lights and city sounds. They're in an alley, out of sight of the road. Madoka stops, glancing around, still holding onto Homura.

Homura is staring up at her and definitely not blushing at all.

She lowers Homura to the ground, letting her get her feet under her, but not letting go quite yet. "Are you okay Homura-chan?" she asks, sounding flustered.

How is she supposed to be able to answer that while Madoka is still holding her in any capacity?

She blinks several times. "What... was that? You are dressed..."

"That was a witch. They're - magic monsters. Most people can't see them. I'm a magical girl, so I fight witches - I need to go get that one before it runs off and hurts people, okay? Will you be okay here?"

"Yes," she eventually manages. "You can... will it hurt you?"

She briefly looks super sad.

Then smiles. "Don't worry, Homura-chan! I'll be okay!"

WOW THAT WASN'T REASSURING AT ALL

She wants to go with Madoka. Obviously she will only be a hindrance if she does, but - letting her go back inside that place alone feels very wrong.

"You have a lot of homework to do for our project. So come back safely."

Her smile turns more genuine. "I promise. I'll always come back to you, safe and sound."

And then she turns, opens a strange portal, and is gone.

She's just going to

sit down for a little bit. Right here.

She hasn't seemed to suffer any heart failure, so. That's good. And her backpack hasn't sustained any water damage from being in a scary magic ocean.

Homura pulls her notebooks out of her backpack and starts studying right there on the alleyway ground, waiting for Madoka to return.

Madoka, fortunately, isn't gone long, though she apparently didn't return in the alley - she jumps down from the roof above.

Homura probably doesn't look as relieved as she feels, which is extremely. 

"Is it destroyed?"

"Yeah. Blasted it to bits."

"I made you a copy of the textbook notes." She holds it out. 

She beams and takes the notes. "You're such a good friend, Homura-chan!"

She bows. "Thank you for saving my life, Karigane-chan."

She waves her hands, suddenly apparently flustered - "Ah! No need! I - Just - "

"...Didn't want to lose you."

Her face feels hot. "Mn."

"How are you a magical girl?"

"Ah - the day after you started attending our school, I met this weird little animal that can speak in people's minds. We made a contract - I'd be a magical girl and would fight witches, and he'd grant a wish of mine!"

"What did you wish?"

"Oh - I didn't really know what to wish for, so I wished to be a magical girl... It was really silly, probably, but - I wanted to be cool, and to be able to protect people..."

Maybe she is not safe from heart failure yet after all.

Homura tries to come up with a response to that but instead just sort of stares.

"You okay?"