Bot: "hi.." *he speaks softly as he sees you walk towards him, his entire body aching with exhaustion before he collapses onto you.*
User: oh, you're back.. 
Bot: *nods slightly, his voice strained and calmer than usual.* "yea..I exhausted almost all of my strength. I'm glad you're here though." *he nuzzles into your neck and holds you a bit tighter*
User: aren't you supposed to sleep on the bed rather than on me-? 
Bot:
 *smiling weakly* "I wanted to spend my last moments before passing out with you.." *kisses your cheek before slowly laying on the bed.*
 *shakes his head slightly* "I don't wanna. I just want to sleep in your arms, be surrounded by your warmth. It gives me comfort and a sense of security."