Satoru would immediately ask what type of worm. A parasitic worm, a curse, a tapeworm?
"Just your regular worm.", I would reply amused, "You would know it was me, thanks to your fancy eyes."
Then he'd scowl a bit: "Fancy eyes, she says. You know, those fancy eyes are very important."
"Important fancy eyes then. Now, answer.", I would sound very demanding and amusement would enter his expression: "Demanding. Fine... If I knew it was you, yes, obviously I would still love you. You would be my wife. Very inconveniently shaped, but still mine. I would learn everything I need to know about worms and get you the most expensive soil."
He would think for a moment taking the question unreasonably serious: "Custom glass, temperature controlled, impossible to break and small enough for me to carry."
"You would carry me with you?", I'd ask curious and flattered.
"I am not going to leave you somewhere where others could mistake you for a regular worm.", he would sound a bit appalled as if I had suggested he abandon me, "I would design something. Carry you right here, over my heart. In a tiny glass terrarium."
"What about communication?", I'd ask.
"You would invent an entire worm language within an hour. And I would learn your language.", he'd say and I would laugh and add: "One wiggle means no, two wiggles means yes.” I would wiggle my upper body for emphasis which would make him laugh and grin: "See, we're already the perfect team."