What sorts of non-lovemaking activities and such did your characters bond over? Eating, watching TV, soaking in sunshine, calming chats.
What sorts of non-lovemaking activities do they do together? See above. Cuddling, toking, also she helps him in the greenhouse a lot.
What kinds of things do they talk about when they're together? The Upside Down. Weird shit. Dinosaurs. Their favorite characters. Harry Potter theories. Their mutations.
What dreams and goals do they share? Winning the steampunk/cyberpunk war. Being king and queen of Limbo... Going to Hogwarts.
What dreams and goals do they have that they do not share? Troy's really into hanging out with kids/animals and focusing on them. Illyana isn't great with them, yet; that's a bit problematic.
How many children does each partner want? Have they discussed this? If not, why? Oh God no. No discussy. No habla inglés.
What other plans do they have for the future? Which ones have they discussed? Why and/or why not? Being ill-ass Lemony Snickets, remaining a pack with her brothers. That's about as far as Troy's thought.
What are the most difficult situations they have faced together so far? How did they overcome them? On the nightly, Illyana's nightMares - frickin' Pitch-level stuff (Rise of the Guardians).
What are some of their best memories together so far that have nothing to do with sex or the development of the relationship? For Troy, it was exposing her to My Little Pony. He got to watch it through her eyes - the gleeful and the scary.
What things do they do that get on each others' nerves? Illyana leaves a lot. When Troy's talking. He probably smokes too much for her liking. He's not sure. He keeps forgetting to ask. Frankie knows. Edibles. Word.
What little personal quirks and unusual tastes do each have that the other is aware of? How did they learn about them? Illyana twirls her hair when she's thinking really hard about something - not when she's anxious, just when she's grinding her gears. It's flippin' adorable. Also, her lips quiver when she's cold and it makes Troy want to brave the winter to see it.
What views do your characters disagree on? How do they reconcile their differences in opinions? They mostly bicker of the relationships of others, or the lives of their friends and family. There aren't too many dire situations between them.
What sorts of things did they or do they get into arguments or fights over? Troy feels his feelings really hard, but he tries to shelter Illyana from them so she doesn't stress out. She inevitably finds out and they have to talk it through.
How do they reconcile after arguments or fights? Sharing nachos in his El Camino.
How do they each react when the other is in pain or is troubled? What do they do to help the other? Troy's first instinct is to hold her.
What is the biggest potential threat to their relationship? What is the most likely threat? Her critters, probably. The ones he can't see. And the ones he can. Mostly when he's high.
What would each partner be willing to change about themselves for the other? What wouldn't they be willing to change for each other? Troy loves his satyr child bride. He wouldn't change her. He has tons of room for improvement though, so, she can try.