What was the optimal move in the Seer situation?

Please punch holes into my perspective, as I'm genuinely looking for the optimal move here.

I paused the show as soon as Frankie chose Charlotte, and I thought about how I'd play this and this is what I think would be my best move...so this is what I would do if I was in Charlotte's situation (and I ignore the fact that I would actually shit myself if it happened to me).

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Frankie opens the envelope and sees that I'm a traitor.

I explain to her, that all things considered, I'm actually really happy that she knows, because keeping this secret from my number one ally was the hardest thing I've ever done, but I hope she understands that I couldn't tell her.

I tell her that I'm sorry that I put her into this position, but even if it might not look like it, she has a huge decision on her hands, as there are two paths in front of us.

If we go down the obvious path and she outs my role, I'll have nothing left to lose and will have to fight back, doing my best to turn it on her, as the only alternative would be to give up, which I hope she respects that I won't do.

I tell her that even though I actually believe that she would win the argument and I would be banished next, there would be enough damage done through the she said/she said, that there's no chance the remaining players would choose to include her in ending the game. She might very well get to the final 3, but the other players just wouldn't be able to risk it, as what if she's a traitor that got another traitor (me) out. They have no incentive to take her, even if they're suspicious of her just a tiny little bit and if they can end the game with just 2 players left, they will do so, as they can split the money 2 ways instead of 3, instead of risking of losing it all.

But...

If she keeps my secret, we have a chance to turn this awful situation around and do something fun, something unprecedented in the history of the Traitors. A faithful and a traitor can work together.

Of course, one of us can win only if the other loses, so my proposal is, we say that I'm a faithful and we do everything we can to pull another player (your choice Frankie), to get a 3 in 5 majority, we get down to the final 3 and we both choose to banish, since again, we can't both win.

Taking this path gives us both a 50% percent chance of winning the game, instead of both of us losing.

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Now I know that the approach above is not perfect, but I do think that you have to explain to Frankie how hard it was for you and how happy you are that she's the one who found out (this is a social game after all), but she also needs to understand that she's in danger and that this is not a team game.

Of course, she can't trust me that I would actually work with her, but again, if she doesn't, she's for sure not winning.

I still think that there's a very high chance that Frankie wouldn't go for it, as she wasn't portrayed as a player that's there to win above all else, even though I genuinely believe it's in her best interest...but I just don't see an emotional appeal working better, once sitting at that table.

Let me know what you think.