Can someone translate this French phrase for me please

[sofato5miles]

I don't trust Google translate

Je vais filer a l'anglaise

Im going to run away under the cover of darkness (aka sneakily)

I'm going awol

Google translating it in separate parts seems to be

I’m going to dash

I’m taking French leave.

Thank you! Huge relief! Thought my French boyf had accidentally sent it to me slagging me off..

I remember hearing that in English we would say take French leave but I've never heard an English speaker use that phrase.

sneak out
leave quietly
bugger off without letting anyone know where you're going

Luckily I went with Google translate and replied "sounds good".

What did you think it meant?!

I thought it meant he was leaving his event to come to me. It turned out he was leaving and went home. We then had a disagreement and today I suddenly thought it might hinge on this phrase. Even though all is good now.

I was suddenly paranoid that it meant he had had enough of me, luckily I never mentioned that to him

I’m taking French leave.

I have never ever heard this phrase, or seen it in a book. What does it mean?

Oh bless you.
I'm doing a runner.
Sounds good.
I think that's a great stock answer only beaten by You do you

qz.com/quartzy/1163220/tis-the-season-for-the-irish-goodbye-the-french-exit-or-to-leave-the-english-way/

excellent article here for those interested in language

I actually replied C'a m'a l'air bien.

Was feeling so confident

it's basically pissing off without saying goodbye steppe
The article above explains it really well, as there are different phrases and countries involved depending on your nationality!