Maybe it was about time they started, if… what ever that was that had happened was any indication. They really needed to be more careful if this game was going to continue. And he didn’t know about the thief but Shinichi knew he wanted it to.
“That sounds like a good idea.” It also didn’t sound like the thief was wanting to split up? Maybe? He almost hoped not.
He didn’t know if he could handle having to split up from him again in fear it might happen all over again. He didn’t have the mental facilities to go through that again.
“Should we split up?” he asked anyway, eyes on the thief’s hand that didn’t hold the smoke bomb.

Blinked. Ah… After that happened, the thought of splitting up hadn’t crossed his mind… Now he had to think, though.
Normally, it’d be smarter to split up and meet back (probably at Shinichi’s house) later, instead of them going together while one of them was purposefully noticeable. …And Spider’s never actually attacked more than once after he’s left… but Kid hadn’t seen him here to know he’s left yet. And normally the only reason he couldn’t try again was because the police came. The assassin could still be around… (Didn’t that give a chill… he came this way because there wouldn’t be police in the way, but suddenly felt much more vulnerable without a gang of officers around.)
“No,” Kid finally decided, “At least, not right now. We can later, if you want, but we should make sure both of us get away from here without any problems, at least.”