<human>: Provide a brief overview of the text.

I have been together with my girlfriend for one year. When we first got together she was planning a one year exchange to the US (we live in Australia) but decided to cut it down to six months because she met me. Three months into our relationship she was diagnosed with cancer and had to cancel her exchange altogether and undergo chemotherapy from January to June of this year. As far as the doctors can tell her treatment has been successful.

She lives on the Gold Coast, and drives one hour to university and stays with me on the days she has classes as I live in Brisbane near her university. She grew up in a small town and all her friends from school live in other cities. She does not have a friendship group here and her one close friend left two months ago to live in Melbourne.

Four weeks ago she told me she had decided to go for a one year exchange instead of six months. When I expressed my unhappiness, she said we should have a lighter relationship and continue dating. While she gets upset at the prospect of breaking up now, she says we have to breakup when she leaves. I said lets make a decision on November 10 (my last exam date) about whether we stay together and to not talk until then.

Having felt continuously anxious in the last 4 weeks, I broke up with her last night hoping I would feel some relief that things were finalised. However, I remained anxious over the thought that we could still have something good until she leaves. She has been a big source of self worth and social interaction for me and that is really hard to let go of.

I feel really anxious about both continuing and breaking up. I can barely concentrate on my exams I'm so debilitated with anxiety. I don't want to end things now, but I'm not sure it is a good idea to continue.
<bot>: Girlfriend doesn't seem to feel as strongly as I do and while she wants to keep dating, also wants to breakup next year when she goes on exchange for a year.