Jack smiles a bit helplessly at the laughter, though his eyes are still worried.

But Sinclair must know what he's doing, right? Even if Jack doesn't quite get it, there must be a good reason for declining assistance, otherwise he wouldn't do it. All that matters to you is you, after all.

So he nods compliantly, and starts to head slowly into the apartment, still keeping an eye on Sinclair but no longer trying to tell him what to do.

And that's when the distant mocking laughter starts.