I think it's a mixture of both. Wonderland certainly pushed us to be closer, but we held on long after Wonderland tried to tear us back apart.

[He says it with such conviction- or at least, as much conviction he can muster in such a contented, lazy state.]

So am I, Sans. So am I.

[He holds onto Sans's hand tight, reveling in the warmth and love he can feel, both inside and out.]