Ghee
Listen to these people and take their advice. If you carry on in this "relationship" it'll only end badly for you. This guy is obviously trying to dominant you, if he's doing this from 7500 miles away whats it going to be when you get to the UK?
It sounds like this bloke has an idea in his head that he wants a submissive asian girl to be his to control. It looks like he has a sterotypical view that women from the far east will bow down and do all his bidding while he can lord it over them / you. I'd bet he's tried this with UK girls and been told where to stick it. I advise you to do the same.
It is total unacceptable of him to make these demands of you. You can not be expected to sell your entire life to finance one trip to the UK to prove to him that you are sincire. What happens at the end of this trip? He's had his fun and would no doubt discard you to fend for yourself. In the mean time you are left with nothing, in a worse position than when you started.
Its easy for everyone on here to say it, but.......Bin him, block his number, delete emails and addresses, burn letters and pictures.I know thew heart is a powerful thing but you've got to listen to your head on this one.
Go out and have fun for yourself for a month and I'll bet you meet someone a lot more worthy of you.
Good luck to you, stay strong and get rid of this to**er.