Home or away?

I've been studying English Language & Culture for 4 years now, and I naturally feel a great affinity with Great Britain. Maybe that's even an understatement: I love the atmosphere, the nature, the countryside, the people, the culture. I usually only watch BBC programs, most of my favourite authors are British, and I know more about British culture, history, and arts than any other country, including my own. I've always loved British novels and tea, but now I've also acquired a taste for many other traditionally British things, including many bakery things, rugby, (British) theatre, and of course British humour (I still can't figure out cricket, but I will one day!).
So usually, when there's a sporting event, I back both the Netherlands and Great Britain (or England if the countries compete separately, as in the Six Nations Cup). I thought I might get into a bit of a conscience conflict with the 2012 Olympics, as these are held in London and I felt that I would probably back Great Britain more than the Netherlands.
Interestingly, the opposite has happened. I've cheered for the Dutch so much more, especially when competing against Great Britain, which happened mostly in the sailing, cycling, and equestrian sports, that I've been thoroughly annoyed at all the medals the Brits keep winning. Even more, in other sports I'm also starting to oppose the British, and starting to favour people from countries I'd never thought I'd like (yesterday I cheered for Ivan Ukhov in the high jump, but he's just the most eccentric athlete you've ever seen...). In any case, blood apparently does run thicker than water.
I wonder how this will play out when the Olympics are over. I'm generally not a huge admirer of Dutch culture or customs, even though I write extensively about them on my Postcrossing cards, I often think that I'd rather live somewhere less narrow, less self-absorbed, where people have more respect for others (I'm now thinking that probably everyone feels this way about their country, but hey). But then where ever I'd go, I'd probably still feel inherently Dutch, even though I'd always thought I'd easily adapt to whatever environment I'd find myself in. Not that I would be one for importing drop and hagelslag (Dutch things) because I couldn't do without them, but this has shown me that the Dutch thing is ingrained deeper than I thought.
Another positive revelation is that I apparently don't automatically back the horse that is doing best. The Netherlands are doing great, with 5 gold medals so far, but Great Britain is really on a roll. All I can say is: good for them!

PS: The title is from a round of questions in A Question of Sport, another BBC program, great fun even for non-sport lovers!