Why’d Gil Snitch On Tarvek: Theories
Gil inherited a few things from Klaus. One of them is a tendency to avoid expositing. Among other things, he’s very closemouthed about his childhood. Because of this, we don’t know much about Gil as a kid or his mindset from Gil himself.
So why did he snitch on Tarvek about his intel stash and believe Klaus was right about him for over a decade? Some theories:
1. He’s Just Not That Into Him Theory
Why does Gil refuse to believe Agatha is the Other, but decide his father is right about Tarvek when they got caught looking for Gil’s family tree? Occam’s Razor (that thing can cut through anything!): Gil didn’t like Tarvek as much as he likes Agatha.
It’s hard to disprove it because there's no one else to scale Gil's relationships with back then except Von Pinn and Klaus, whose relationship with Gil is totally different. Gil didn’t know Agatha as long as he knew Tarvek at those points, but you can like someone you don’t know. Nothing requires Gil to have liked Tarvek as much as Agatha. Tarvek was Gil’s best friend… out of zero other friends. How much does Gil have to like and trust Tarvek to recruit him for the family tree search? Who knows. Tarvek is the one who cracked the safe in the flashback, and we don’t know if Gil could do that himself back then. The information they were searching for was something Gil probably wanted to tell everyone anyways. And they have their Paris interactions to get to know each other better in the future.
2. Klaus-Gil Dynamic Swing Theory
Klaus is always right… that’s something Gil doesn’t seem to have questioned before he discovers Klaus’ mistake with Agatha. At seven years old, Gil trusts Klaus’ judgment more than his own. At twenty-two years old, Gil is more critical of taking everything Klaus says at face value. He’s also got a whole decade of change and growth behind him. In Book 2 Gil and Theo have this exchange:
“You sounded just like the Gil I grew up with.”
“I’m not,” Gil said flatly. “Too many things have changed. I’ll never be that person again.” He smiled and punched Theo in the arm. “But I can remember the important bits.”
So it's a different Gil making different judgment calls.
3. Suspicious Sturmvoraus Theory
It’s Tarvek. Even when they’re on better terms Gil (and Agatha) are suspicious about him working at multiple purposes. Tarvek initially approached Gil to make him his minion at the age of seven. Tarvek also thinks that Klaus told Gil about Tarvek’s family, so Tarvek himself may have told Gil very little about them, or censored what he did share. If so, having a sudden info dump about their many sins probably didn’t help anything. We also don’t know what kind of schemes Tarvek got into where Gil could see them, but Gil does know that he got a secret hiding spot. And that he’s extremely good at lying. So he looked at Tarvek and decided yeah, he's probably lying to him.
Before Tarvek, Gil had really poor relationships with his peers. Or at least, any positive ones he used to have were broken off. Present day Gil is a very friendly guy, so it wouldn’t surprise me if Gil tried to make friends… maybe even succeeded… and then they fell apart. If so, it wouldn’t be strange if part of Gil was waiting for the other shoe to drop. Something made Gil want to custom-build his own, very dependent friend construct. Definitely not a surfeit of healthy relationships with his peers.
5. Perceived Vulnerability Theory
Agatha needs protection from what Gil can see in the first arc. She’s a female Spark in an Europa where they all disappear if not well-protected. He meets her at one of her lowest points and works to build her up. Their second meeting had him pluck her from her house after she got sedated. She gets more dangerous afterwards, but Klaus does a poor job at explaining things and is very clear that leveling the town she's in to kill her is an option.
Tarvek is a prince and the son of a powerful Spark, on a ship where both qualities are enormously important to their peers. They may be hostages but neither felt very endangered by it. Book 4 also states that Gil had “done his best at the time to get Tarvek sent away”, which could just be referring to ratting him out, but could also be a sign that Klaus’ first impulse was not to send Tarvek back to his family, which makes Tarvek seem even less in danger. Gil thinks if he sides against Tarvek Tarvek will just get sent back home, where he’ll continue to be a prince… and how bad can that be? Whereas with Agatha he saw a little fledgling who was going to be someone’s personal property fighting hard to avoid that. They're very different perspectives.
I'm curious what other people's theories are, so please share if you feel like it.