Natalie I am a British Expat and a recent arrival to Doha. My view is that there is nothing wrong with using your bf as your sponsor. Plus the more time you spend away from each other, the further you will grow apart (and perhaps part). If you are serious about your relationship (of even semi-serious)..what's 6 months of your life in Doha with somebody you love. If you hate it, you go...trust me, I made the same mistake before and lost my ex (but fortunately found an amazing lady since!. My fiancee is with me for the summer and we have become closer by her being out here.

Therefore, think the wider picture....