I like it.
I am going to keep reading :)

Pretty good, however, there were several grammar mistakes.

They weren't aliens you idiot. The were robots. Highly advanced robots that survived what was most likely an ice age.

Good job so far! You've managed to convey the slightly "lonely" air David's home would now have. Though perhaps with two more mechas things will be a bit more lively? When you think about it, I bet neither Kali or Joe has ever been inside a "normal", family home. (Is Kali going to meet Teddy too btw? )

I think you've handled Kali's reactions well, she probably couldn't imagine an orga and mecha being in a relationship--of any kind, where the human genuinely cares at all for the robot.

I have a question, although most of the mechas seemed bitter--with good reason--towards humans, has Kali had an especially painful experience that made her bitter towards ALL humans?

Pretty good, but the "aliens" aren't aliens, just smarter more advanced A.I after two thousand years of development. Though I do like it, can't wait to see where you go with this. :)

Off to an interesting short! The prologue is a bit abrupt, and I think that Kali sounds a bit distant, but I suppose that's to be expected, given that in many ways her personality hasn't had much chance to develop. A few questions, exactly what type of robot is she? Was she modeled after the ex-girlfriend? How much did she know about humans? You handled the description of the crash, and the subsequent freezing of Joe and Kali beneath the ice quite well. Looking forward to seeing what happens next!