I've met more than a few photographers who aren't capable of an original thought. Many will reproduce or copy others work or simply produce bland images. I know of one guy who kept trying to get this one talented woman to shoot him. He wanted to rip-off her lighting techniques.
I wouldn't worry about it. Tomorrow you'll have a fresh idea or two and this other guy will still be hunting for his first. I was reading some WC Fields quotes the other day and one that stuck in my mind went some thing like this:
Person One: You're Drunk!
WC Fields: Yeah and tomorrow I'll be sober, but you'll still be an a$$hole.