Board Thread:Questions and Answers/@comment-24.49.194.81-20180125011517/@comment-2602:306:37F8:7A30:E457:E7E0:6D5A:5A47-20180127072833

"Luvoratorrrrry!" only fits about half of what you remember, but maybe that's it? It's the catchiest song I know where it's addressed to a robot thing that's also implied to be the singer's boyfriend, though when I went looking there didn't seem to be any versions with the robot imagery for the boy that also had Miku instead of other Vocaloid singing it or in the video.

If that's not it, do you remember what the PV's art style was like? Like if the characters were 2D or 3D, if you remember the robot well enough hopefully the song can be found by getting really specific about how he was drawn.