Guardian article suggests that the notion that you are "born with" you sexual orientation is far from conclusive. In fact just the opposite....concluding paragraph of THIS ARTICLE:
When it comes to our sexuality it is very unlikely we are “born this way”. While biology obviously has a role it is our social conditioning that seems to be largely behind our sexual desires. And just like any other social conditioning, this is one that, if we really want to, we can break. If that is what we want to do, why not?
