@smalls0509,
Seriously? You couldn't answer this question without the help of a bunch of strangers?
No, it shouldn't bother you at all that your boyfriend of 10 years is looking for other female companionship. That is quite normal in a relationship. In fact, I'm surprised that you are not also googling for male companionship. Hey, wouldn't it be neat if the two of you hooked up through craigslist without realizing who you were hooking up with?