Hi Cheer_up. I'm sorry you feel so down at the moment.
I understand how difficult a situation it is....I did long distance for 3 years and after that time, the thought of potentially doing long distance for another 3 (if I went to a different uni to the one I did go to) I was sure I couldn't cope.
But that was 3 additional years and not 1. To me, one year would be doable (such that I'm considering moving away to another country for maybe one or two years knowing that WandA wouldn't want to leave Liverpool.). Really, the last 6 years of our relationship have flown by so quickly that I realise in fact - a year is absolutely nothing.
Of course it would be difficult, with all that distance, and the beginning of a new situation takes time to get used to. It very well may take 8 months to adjust to the situation.
But if you're going to have internet access then you can use skype to keep in touch (with videos), and yes you'll miss him physically, but maybe you can cope with that if you're getting what you need emotionally.
But if contact and communication is going to be limited - that's when it gets more difficult to deal with. If *this* is the case, I can completely see why ending it makes sense. Him being "left behind" so to speak will become more of an issue if you're not talking frequently and you may be more susceptible to insecurities about his behaviour in a situation with little communication.
It's such a difficult situation but maybe it's worth sitting down, planning all the scenarios, thinking of all of the pros and cons, the things that will make it harder/easier and how you will both respond to the situation. Then you can be sure whatever you decide (and really, you know best) you've considered all the possibilities.
Ultimately, no decision will ever be 100% perfect but you have to trust yourself to deal with whatever happens :)
And don't feel guilty for doing what's right for you (you say "I know I brought this on myself" and that doesn't matter, it's a difficult situation, don't feel guilty for making decisions that are right for you. Every decision (like moving away) comes with consequences, you can never pick the one that has no negative sides to it because I don't think that exists) you are justified in feeling devastated about the end of a relationship even if you triggered it!
Hugs sweetness,
Adxx