Hello ... andhere ... where you can rely upon friendly - yet frank, down to earth advice.
Whoa ...... STOP there! You HAD a British "boyfriend" from London.
... you're NOT ... at least, not any longer ...
... it's highly IMPROBABLE he's a barrister - an unscrupulous basrd, more like! One of many, unfortunately, who carve out a living by preying on unsuspecting, vulnerable young women - otherwise, WHY else would an affluent member of the English legal profession expect someone in your position to even "chip in" with the cost of medication his daughter [purportedly] needs from abroad? What's to hinder him paying for everything himself?
... I realise it ISN'T the sort of reply you'd been hoping to receive. But this man is a charlatan! And the sooner you cease all contact - the better!