I think 2 things are going on.. The desire to be in Malaysia to be with bf... And, the desire to study and do a degree.
I feel doing both at once is unlikely and prone to failure given her age, work experience, financial circumstances and worldliness.
Rather than enrol on a course and have large overseas tuition fees upfront - Singapore to the south is one of the costliest places to live and study in the world - I'd be giving her 2 grand for a gap year in Malaysia and the wake-up call that £2k, after flights etc, will barely stretch 2 months, even on beans and rice, where beans and rice costs 10p. That's 'if' she gets a work visa, which I doubt she will - she's not a teacher, nurse, anything they need 'yet'.
It will be a time of real growing up, whatever happens. A time to be entrepreneurial, and really open her eyes... And test that relationship!
As someone who went to Australia in similar circumstances, once the money ran out, and real life kicked in, I soon realised that it wasn't the place my partner had built it up in my head. Nor was he.... It was 2 months of heaven (spending my parents money), 2 months of ok and awkwardness (relying on his friends and family and spending my savings) 2 months of real struggle and 2 weeks of realising I'd hit the end of the road when I was down to camping in tents and my tent was broken. Then 2 days of travel home...
The idea of enrolling in a degree at say Brisbane Uni would have been crackers. I could have 'if' my parents had opened their wallets (they didn't at that level), but even if they did, there's no way I would have completed a degree unless I was swimming in their cash and a few years older.