You stared at him and gasped. "M-me? With you? U-us? I-I don't know what to say..."

He waited patiently for your response. "Y-yes, I-I would love to be your girlfriend...!"

Mettaton clapped his hands excitedly, which honestly reminded you of a fangirl. "Thank you, darling! You're wonderful!"

He stood up, grabbed your hand and kissed it. "I must leave now, but I'll be back tomorrow, darling!" He then opened the door and left.

You just sat there, speechless. He really isn't anything like on his shows. He's just a soft-hearted metal man, or as you said, 'roboboy'.

You had never had a boyfriend before, so you weren't sure how it worked.

You then realized Temmie had probably been home. You searched around for a bit, then found her hiding behind the couch, squealing.

"Fren (Y/N) has friend boi!" She squealed. "Tem must tell everyone!"

Your eyes widened. "Where you here the whole time???" You yelled. "Temmie, don't tell anyone! I don't know if-". Before you could finish, Temmie ran out of the house.

You fell onto the couch like a potato and said to yourself,  "Temmie, why do you always do this to me??? I should've gone with Catty as a roommate!"
~~~~~~~~~~~~
Mettaton ran into Alphys's lab and twirled like a ballerina. He picked up Alphys and threw her into the air, catching her a second later.

"M-Mettaton! What's gotten into you???"

He put her down and twirled once again. "Alphys, I have an announcement!"

Alphys looked at him, annoyed. "W-well, whatever it is, better be worth giving me a heart attack, Mettaton!"

"Oh trust me, dear Alphys, it is!"

"G-Get on with it already!"

"Alphys, I am proud to announce, I got my first girlfriend!"

Alphys looked confused for a second. "R-really? Who? *gasp!* maybe we can go on a double date! I-I can go with Undyne and you can go with-!" She paused mid-sentence. "W-wait...Who is it?"

"Well, no on other than the beautiful (Y/N), of course!"

"Isn't she that quiet akward girl? The one that likes anime, too???"

Mettaton put his hand on her shoulder. "It sure is, my friend!"

"Th-That's great, Mettaton!"

He jumped in the air gracefully. "Isn't it???"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rona, here!
Seems like Mettaton's pretty excited to be with you! Poor Alphys, though! X3