Look, Summer had been fooling herself that she was over this and fine and that she didn't need to deal with it for years now; why break a solid streak like that over just some stupid stars and space dust that apparently vaguely resembled some other nebula in a completely different galaxy that she hadn't even been to in, like, half a decade??

She was fine, totally fine, everything was fine.

So fine, in fact, that when Stark put his arm around her, she leaned into him gratefully. Heavily. But with a relieved sigh, because, see? It was fine. She's gotten all worked up over nothing. Nothing...at...al--

"Oh, god!"

The sound that wrenched itself out of Summer was almost like the sound of whatever it was inside of her that she thought was holding everything back splitting and cracking and busting open, and everything came spilling out of her, hiccup after hiccup after hiccup, until, nope, it really was all just sobs and clinging and a torrential downpour into Stark's poor shirt.

And, eventually:

"I'm sorry! I'm so sorry! You just wanted to show me somewhere nice and then I had to ho and be all fucking weird about it!"

At least there was a little voice in her head, in Dr. Wong's calm and measured voice, probably, pointing out that the only thing weird about this reaction is how it took her until just this moment, finally, to have it.