Egotistical people are the best, aren't they? I'm currently having a problem with someone who is very egotistical.
My advice to you is to just hold it out. Eventually, you two will work thing out, or will just stop talking to each other then after a while, start talking to each other. People that think they know everything and they don't are sometimes irritating.
And I actually called someone a noob today over the phone.