What should I do.......?

I live in Zimbabwe & the economy is very bad, you can never get paid enough to afford to live on your own! My mom and I live with Grandparents, coz she can't afford to live on her own and neither can I! We have to pay half of what we clear of our salary and give it to my grandad to help out with food and all and half of our salary isn't enough to buy a months supply of food, so my grandparents hide food from us that they eat when were not there! I have a boyfriend and we have been together for 1yr 8mnths and things are good with him, from the first 4mnths we started dating he had this plan to over to the UK with me and earn a living there, he broke up with me 3mnths ago coz we were pratically driving each other crazy fighting all the time over trust, it's just been so hard for me to trust him (I just find it hard to trust men, after what my uncle did to me 2yrs ago, I just think any man can hurt me...) we got back together a week after the breakup and since then it's been better then before and we feel much more closer to each other and we understand each other alot more then we did and it's great, we hardly argue :o) Anyways he still has this plan to go over to the UK with me, but it's seems like this could only happen in a yr or so..., my friend from the Uk was emailing me the other day and she told me she wanted to help me get over there and she could help me till I get on my feet, I definately want to go, and I'd go for it in a flash if I was single, but coz I have a boyfriend, I just can't see how it would work me going over there and waiting for him to get over, I just couldn trust the distance... I just have this feeling that he will keep telling me he's coming over, he's coming over and eventually we'd drift apart coz it's taking so long, or coz we're both in different countrys he'd see it to be okay to have a fling with a girl coz like I'd ever find out when I'm all the way in the UK... I really don't know what to do, I don't want to lose him, I love him so much and I don't want to go through the pain losing him and because of that I have thought about staying an going when he decides to go but what if something had to happen and we broke it off again and I'd be kicking myself in the wishing I had taken up my friend's offer??? Coz I really want to get myself on to my own two feet, go to college and be able to do graphic designing, which I cold never do here coz I could never afford to go college.... please help me out?