I say let me know!! I am a big girl and can handle it and I won't be rude or take offense. I too feel that technology has taken away personal relationships and it is sad.
I have a 1/2 brother that I refuse to speak too after his unforgivable actions, and my parents have been gone since I was a teenager. I have been blessed with many wonderful people throughout my life who cared for me better than my family every did. That being said I have a rule for "reciprocal communications"; I will contact you 3 times with offers to hang out, dinner, help etc......over a period of time; if I do not hear back from that person I just assume that they are not interested in my friendship and I move along; no hard feelings.
I was raised away from my half brother and I am used to being solo; does not bother me in the least to do things by myself. Over time it seems that so many people are about "what can you do for me" rather than a mutual true friendship, I would rather be by myself with no friends than be around those that are dis genuine.