My male cousin likes me :/// very disturbing?

I know the way you feel and there are two ways to stop this. The first is a rational approach to the situation where you just tell him exactly how you feel and that your love him as a brother and nothing else. The second is to fight "fight fire with fire" meaning that you do things that will deter him from liking you and so he will think you're a complete weirdo, you could also try acting very immature because its considered a "big turnoff"