[When the text comes in, Mettaton is actually walking around the mansion, trying to visualize where he should put the stage he is thinking of building in Wonderland. He absentmindedly checks his device, and nearly cracks the screen in how hard he is gripping it when he realizes who, exactly, is texting.
He's already pressing "video" to shoot a response back.]
Blooky!!! Blooky!!!! It's you, isn't it???? Darling, where are you??? I'm going to find you, immediately!
[A piano?? Piano. Music room. What floor was that on, again? Doesn't matter. His cousin is here!! And he will find them!!!]
Video, all the time, forever, instantly
He's already pressing "video" to shoot a response back.]
Blooky!!! Blooky!!!! It's you, isn't it???? Darling, where are you??? I'm going to find you, immediately!
[A piano?? Piano. Music room. What floor was that on, again? Doesn't matter. His cousin is here!! And he will find them!!!]