From this its obvious that he will not change his mind. He's going to stay living in Pakistan with his parents whether you like it or not. In a way I admire him since most guys would jump at the chance to come to the UK. Now it's down to you. I'm assuming you'll be happy moving to Pakistan and living in a joint family set up, you just have to explain to your parents that once you marry you will be living with your husband. I know it will be hard for them because you are their only child but explain to them that they are more than welcome to come and visit you there and you will visit them too as often as you can.
Just pray 4 me k everything works out well :(
Thx a lot 4 ur help :)