What if Sideswipe is somewhat like Sunstreaker; has his grumpy side? But when a new Femme Cybertronian arrives, he falls in love with her, but she's shy and becomes terrified to be around him.

(Y/D)'s P.O.V.
I arrived on Earth yesterday and finally made my way to N.E.S.T. I don't know if it's a good idea. I found a F/C C/M to scan. After introductions, and a check-up from Ratchet, Prime introduced me to the others. Aside from Bumblebee, Jolt, Ratchet, and Prime; I don't know any of the others.
"Another femme," a femme named Chromia cheers.
The three femmes take me on a tour around the base before I am asked to go to the conference room to talk to the leader of the human end of N.E.S.T.

I get lost and begin to panic.
"S-sorry," I apologize after bumping into a silver bot.
"MOVE IT!" he yells and shoves me out of the way.
That must be Sideswipe.

I try to calm down before getting to the room, but I still look spooked by the time I get there and have to explain what happened. It's embarrassing, I'm a warrior and afraid to be here.
"It's ok, (Y/D), he doesn't hurt anybot, he's just an aft towards them," Ratchet explains.
It's concerning he does say Sideswipe is an aft to the humans. Oh, frag, does he kill them?

As the day goes on, I try to interact with the other bots and humans. They are understanding of my shyness and are nice. I discover Dino isn't a big fan of humans, but he respects them...mostly. He has a temper with them, but doesn't hurt them...or he doesn't in front of me.
"GET OUT OF MY WAY!" Sideswipe yells and shoves me onto the floor to get into the cafeteria.
"Aft," Dino mutters.
"He's a lot worse than Dino," a soldier tells me as Dino stands behind them. I don't think this human is simply complementing Dino. How the hell can anybot stay out of Sideswipe's way when he can quietly skate behind you?
How many humans has he killed knowing he can sneak up behind them? My processor plays out that scene adding to my panic.
"How the frag are you even a warrior, weakling?!" I hear Sideswipe.
"Get out of here, Aft!" Dino rages.
Sideswipe walks down the hall. Why did he even go into the cafeteria aside from...frag...
"Come with me," Dino insists as I begin to panic.

I think I spaced out, as I don't remember walking down the hall and walking into the medbay.
"Easy, he won't hurt you," Ratchet assures me before injecting something into me.
He instructs me to stay here for a while to calm down.

Sideswipe's P.O.V.
It's been a while since I've had a new cybertronian as fresh meat, what a thrill it is and she's easy prey.
Figures, Ratchet has come to scold me about freaking (Y/D) out.

As the weeks go by, (Y/D) is more terrified of me than the humans, perfect. Yet, every time I go to terrorize her, my spark feels odd. This feeling intensifies as I see (Y/D) has gotten a holoform. I thought the other femmes, Autobot, and human - were pretty, but wow, (Y/N) is hot!

I go to the hanger, transform and activate my holoform. Hoping (Y/D) won't know it's me and we can talk. I know the other half of the problem is my attitude.
Come on, Sideswipe, this is your chance to be nice to her.

Ironhide's holoform stops me before I can approach (Y/D).
"Why are you bothering talking to her? Do you think she won't lmow it's you just because your using your holoform?" He asks.
"Well, I..." I don't know what to say.
"You like her, don't you?" Ironside smirks.
"Why would I like her?"
"You forget our holoforms function like the human body, right down to hormones, and we can smell hormonal changes. I can smell you're in love with her."
So that's what that odd feeling in my spark, and now my holoform's heart, is.
"You're going to need my help, kid. As it is, you don't know how to be nice, but to her: one who's terrified of you."

Ironhide knows a little about romance from being Lennox's partner and being around him and his wife, but I shouldn't be surprised he still gets Lennox involved.
"The cold hard truth is; there's very little chance she'll even let you be her friend, never mind boyfriend, Sideswipe," Lennox explains, "this is going to take a while and you're not patent. First, we need to get (Y/D) to feel safe around you. Start with being with you and others, then try kind of alone. She thinks you two are alone, but someone will
watch in case she panics."
He's right, this will take a way, things will change as fast as I made (Y/D) afraid of me. I worry it's too late, and she will forever hate me.