Unfortunately, Loona's advice to wasn't good advice. Not for Via.
Look. Stolas is definitely trying. And fucking up doesn't mean he doesn't care. And Stolas does love Via, probably more then he loves Blitz if the amount of love isnt equal. Trying. Is. Important.
But it's not the only thing that's important.
Blitz trying almost always puts Loona first. Blitzs trying is always thinking of Loona.
If Blitz and Stolas position was swapped in mastermind. Where Blitz had to run to court to save Stolas from getting axed. We would have probably seen him hesitate for a fraction of a second because he would be worried about how Loona would be affected. he would of still chose to save stolas but that right there is literally the thought that counts.
After he saves Stolas, Blitz still wouldn't go near the chopping block until he had someones word that they would take care of Loona. That Loona would be safe.
Even in the show proper, at the end when the axe fell, Blitz showed Loona he was thinking of her. Blitz let Loona know he loved her.
Stolas didn't do that. He didn't even mention Via until after he lost his powers. That's the difference.
But it's not just that.
Both Stolas and Blitz wanted their "daddy daughter day". Stolas spent the whole trip to Loo Loo Land (someplace Via didn't want to go to in the first place) not listening to a single word she said to him untill she stormed off. While Blitz did trick Loona to into being with him. When Loona said she wanted to give Mr Wiggler one last chance to say goodbye to his kids. He listened to her, he did what she wanted even though it cut into the daddy daughter time he wanted.
When Via was in the human world and Stolas had no idea where she was he was very distracted. Sometimes he was appropriately worried for Via other times he was distracted by Blitz or by some cool glasses or by... well Blitz. When Blitz had his little freak out with the pug he immediately wanted to find Loona and he locked the fuck in.
When Stolas was on the phone with Stella for something relatively minor, moving furniture so Stella would shut her bitch ass mouth up, he just wanted to argue with Stella and didn't listen to Via when she was trying to remind him what day it is. When Stolas called Blitz while he was kidnapped by striker Blitz didn't want to even consider not taking Loona to the doctor and wanted to be there for Loona so he sent the M&M's to save Stolas. Blitz choose Loona over helping Stolas who was in serious danger. Stolas chose arguing with Stella over listing to Via.
Blitz shows he cares while he's trying. And because he shows he's cares Loona knows he cares. Stolas has been SAYING he cares but never actually showing Via until something happens and sometime after that goes back to trying but never showing so now Via doesn't think he cares even if she might think he's trying.
THAT'S where Loona fucked up. Trying isn't enough. Yes Stolas is trying and yes he does care but you also have to prove it consistently. Not just after you fuck up. Thats why its bad advice for Via. It's good advice in a general sense but not when applied to Via's specific situation. Via's not the one that needed to be talked to. Stolas was.
Loona can't help until she realizes that, and if she does it's not Via who needs to be talked to, reasoned with, or called out.
and that's also the difference in (i don't have time to fully flesh out this thought rn but here's the thing and im probably going to fuck it up) blitz's whole thing is the fact that he's been able to make his own choices by the skin of his teeth and he CHOSE Loona and his whole found family - stolas HAD to marry stella and produce an heir
