Connection Error

I love staying "connected" to things around me, people, memories and call myself a pretty emotional person. So when I get invites, emails, more follow-up emails to connect, orkut, tweet, google wave, facebook ex-colleagues, acquaintances and random junta I just ask one question to myself - do I want to stay connected? The answer doesn't take more than a minute and I hit the decline or accept button with no regrets!

I have no personal grudge against these people and in fact I appreciate them getting in touch with me and taking the effort. The problem lies with the memories, situations which they bring with them and I don't want to be associated them now. And, now being friends with them on the social networking sites I don't feel the connection at all.
I was friends with them in a different situation, mindset and now don't feel it anymore. Is that mean thing to say? It could be but it is a fact! People whom I really want to be in touch are already connected to me so can I just put a "stop" sign on my profile?