"Rather be the girl that got away than be under your thumb,
Don’t need to spend no more time on you,
Not like I was in love,
Not that I’m having a nervous breakdown,
I’m just let down, down, down,
You don’t know what that’s like though, to wait up, wait up all night though,
To sleep, sleep with one eye closed,
I’m blessed yo’, I’m blessed yo’,
Lord had some mercy on me, he looks out for nobody,
He spared me your treason for some unexplained reason,
Yeah,
So, I thank you for teaching me how I could live without you,
Never needed me, I don’t need you,
Fuck you and Jennifer, I know that you’re out with her,
Go pretend that you’re just friends,
I’ll pretend that I’m not hurt,
I know all the shit I heard,
You can take these bitter words,
Fuck you and Jennifer,
Go fucking make love to her,”
https://www.youtube.com/watch?v=Vd1eNmFtROo

When Mercurius is around two or so Lyna has had enough of Cassius' shit and leaves him

Friend showed me this song for her character, and just like? it also really fits Lyna, I'm actually amazed how many Magnolia songs can fit Lyna also, great minds and all

"Jennifer" as a reference/code of Cassius' violence and what he's going to do, he's not cheating on Lyna, he barely holds desire for Lyna herself, he has no urge for anyone else, he's not gonna bother cheating, it gives him nothing, he only really slept with Lyna because she wanted it and he figured he'd keep her happy (in contrast, he sees Heizu's want, and is just like ignore, because he doesn't think he should try to keep him happy, he doesn't care)
Lyna was the only one to be so excited and happy to see him and smile no matter what he did, Cassius proposed to her to keep her and because he figured that's what she wanted, he slept with her because that's what she wanted, and when she leaves him, he's just like "...what did I do?" and Cassius wants her now, just because she left him, even though she was "his"

Bby Mercurius wanted to be tucked in by daddy, so Lyna was like "Okay, let's stay up until daddy gets home!" Mercurius fell asleep before Cassius came home, spotted with blood, and man is Lyna glad he fell asleep, she would scream and cover Mercurius' eyes if he was awake, can't see daddy dripping blood, nope, no, not his blood but Lyna will not have this, if you're gonna come in with blood on ya', stop it, get out

I'm actually rather proud of baby Mercurius here, please appreciate my bad baby drawing skills

"You and Jennifer"-Bülow
Mercurius, Lyna, and Cassius-Me