Long distance relationship? (P. S. - we have completed 1 year of being together)?

So my boyfriend is going to UK (Leeds) for an year, and I am here in India. We've been in a long distance relationship for 6-7 months and now we live close to eachother. He has assured me in every possible way and i've shown that i am not feeling good about him going. But its the matter of his studies. And its a span of 1 year. So what should I do? Should I leave him just because of my prediction that he'll cheat me or should i trust him as he would trust me too that we'll make it work?
Long distance relationship? (P. S. - we have completed 1 year of being together)?
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