hi there Queenbee, lucky you

I have no experience about big money as we are poor

but if your bf is paying for your visa/ flight/ ets then I think it is acceptable to have that money in your bank account
as to your annulment and you bf divorce being in process i think that is not relevant to your application because you are not going to the UK to get married AND if you are about to apply for fiancee visa (just an example) make sure that all is final and your bf has the decree absolute otherwise you will up being refused BUT that is not the main thing to worry now am I right..
so sit back and relax and draw some money out pop in to David Saloon

enjoy and relax lovely lady.
have a nice day