When I first started riding with DH, I had a clunky, crappy bike and he had a beautiful fast Cannondale. I griped, complained and pouted on every ride. How tired I was, how hot it was, how he was going too fast for me to keep up... surely it all meant he didn't love me!

That went on for just a few months and I saved up an purchased a better bike... not a great bike, but better than what I had. I could start keeping up with him a little and I whined and complained less. 6 months after that, I got my road bike. From then on in, no complaining. 1.5 years after that, I got a great road bike. He drafted me yesterday .

Just some food for thought... sounds to me like he is jealous that you love riding the bike and that you are having a relatively easy time of it, while he is struggling.