No, Cindy would have never disappeared. Pete certainly knew that. "She wouldn't have left you, wouldn't have left any of this," he agreed - especially what with Garrus up to his chin in criminal gang difficulties.
He began rummaging for clothes, things that had been carelessly tossed. "You didn't ruin anything, we'll find her," he promised - and he wanted to make good on that promise too. The laptop was procured (his work laptop, with all the encrypted shit and the brain CPU connected) and he booted it up to begin tracing a signal, something, anything.
"Give me two seconds...alright. Are you in the car now? Her mobile's off, it's been off..." Which meant he couldn't trace much. "I'll hack into the GPS system on her car, should give us something."