I think you mean WYT. It stands for Whatever You Think. Maybe the person that wrote it wrote it wrong. I don't think WYF stands for anything, unless you make one for it.
It could mean whatever you fancy.
The acronym WYF can mean World Youth Festival or "what's your fancy?" The common word is "wife" (female spouse).
Inbd mean "It's no big deal" in text language.
BTW means By The Way in text language
A wyf is an obsolete term for a wife.
in text language ttfn means ta ta for now
Inbd mean "It's no big deal" in text language.
defo
RUS in text means "are you serious".
WYF stands for "What's Your Favorite" and WYB stands for "What's Your Best". These acronyms are often used when asking someone to share their preference or opinion on something.
who you speaking to
gnu