(All will be first person boy.)
Levi:
I stared at the clock in my office as I thought of the way to ask her.
"I could spell it out in titan corpses, nah." I say out loud
"Ugh why is this so difficult." I groan.
"May I come in?" Four eyes' voice was heard
"You will anyways." I grumble
"What's up your ass?" She asked disgusted.
"Let's just say.. that, hypothetically of course, I was trying to ask someone out. How would I do it?" I ask
"OH MY GODDESSES!!!! okay. Find out her favorite flower and then spell it out in them. That's what I wish would happen." She replied.
"Thanks. In may need advice from you more often Hange." I say cracking a smile.
"L..levi." She says surprised
"I'm in a good mood. Don't push it." I mumble
"PLEASE LET ME HELP YOU!" She begs
"Ah god! YELL LOUDER SO SWEDEN CAN HEAR YOU!" I yell in response, "now. Let's all stop yelling, and you find out her favorite flower."
"How will I do it without it being too obvious?" She asked defeated
We pondered, and it hit me
"Get Armin in on it as well. Have him make her like a flower crown or something." I reply happily.
"On it!" She squeaks, I follow her out and hide behind a corner.
"(Y/n)? I have a question! I swear it's not for research." Hange yells.
"Yeah what's up?" She says as her (h/c) locks fly in the wind.
"What's your favorite flower?" Hange asked
"Uhh. Hmm. Ooh! I really like (f/f)!" (Y/n) replies happily
"Thank you!" Hange said walking to the barracks
"Why did you need it?" She asked confused
"Oh! We were going to make you a flower crown!" Hange yells in response
'Just as planned' I thought to myself
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Funny. You thought I was gonna write all that?
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All was set and I stood in a circle of (f/f)s, while the other one's spelled: "go out with me?"
There she stood, with a flower crown on her head, (h/c) locks covering her eye, and eyes covered.
"Hey! What gives?" She said grumpily
Armin uncovered her eyes And she gasped.
"You're the most beautiful brat I've ever met, I love you. Will you be my girlfriend?" I ask her with a smile
"I..I..I..." she teared up. "You're the most grumpy man baby I've ever met, and I love you too!" She yelled jumping into my arms. We fell back as all of the pedals built up around us.
Cheers came

Eren:
"Hey (y/n)? Do you want to go to the beach later?" I asked her.
"YES!" She yelled happily.
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Le time skip.
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I built sand castles as (y/n) played in the water.
I knew it was time to seize my chance. I grabbed and stick and started drawing in the sand, "Will you be my girlfriend?", and made a heart sand castle. Everything was in place as she came out of the water,
"Hey Eren! What did you make?! Oh my-" she said covering her mouth
I smiled as she started crying.
"Did I do something wrong?" I asked petrified.
"N..no. I..it's p..perfect." She squeaked "a..and y..yes, y..yes I..I'll g..go o...out w..with y..you!"
I grabbed her and pulled her down into the tightest hug
"Now I'm all sandy!" She whines.
"I can fix that!" I yelled as I scooped her up and threw her into the ocean.

Armin:
Okay I have no idea how to do this! I've been dropping hints by having her read romance books, telling her I had something huge to tell her but I didn't know how, and telling her that we should watch the sunset together eventually. I mean come on! That's like the biggest hint I've ever dropped! I had one last idea, if that doesn't work I'm giving up.
"Hey (y/n)? I want to ask you what you thought of this book?" I asked her.
"Oh yeah! I'll look it over!" She chimes
She flipped through the execution of my plan. The first highlighted word: You
Second: Are
Third: Beautiful
Fourth: and
Fifth: I
Sixth: love
Seventh: you
Eighth: will
Ninth: you
Tenth: go
Eleventh: out
Twelfth: with
Thirteenth: me?
"Why are these words highlighted?" She asked
'Damn I really thought that would work' I thought to myself I started frowning.
"Hey? Are you okay?" She asked concerned
"Yeah.. it's just. Ugh! Read all of the highlighted words in a row please." I beg while flushed
"You are beautiful and I love you. Will... you... go.. out with me....." she said finishing slower
"I thought it would work. I'm sorry." I say looking at my feet.
"You're my little coconut head. And I love you too." She said smiling
I looked up and she was crying.
"I'm so happy." I squeak
She pulled me into a hug and we held hands as we walked into HQ.
"hey Armin did you- YAAAAAYYY!" Mikasa squeaked.
"Armin my man! Nice score dude!" Conny said as he slapped me on the back.
"Oh yeah." I replied