I guess I get to play the other side here.
If it was not for the so-called brilliant technological advances in communication, I would probably not have met my significant other. Computer has played a role in the beginning for us, making it easier for us to communicate, but we have moved past that now. We are using that tool as a method for us to keep in touch with each other throughout the day and to know about each other's news.
Of course, I focus on my s.o. mostly, and talk with other mates from time to time. These technology has helped me to practise my German, whilst conversing with my German friends, keeping in touch with them. I am starting to exploit this with my s.o. by practising my Vietnamese, which I wouldn't otherwise be able to do in person. Fingerspelling in Vietnamese can be exhausting!
It is true that some people lack the courtesy when it comes with SK and being around people. Please turn them off, or leave away message with "emegencies only" message. I leave my IM program online at work, with the message that I am at work and emergency messages only. It works.
I also agree that technology does not improve communication. Everyone has different style of communicating, and thats a major factor. Technology is only a way to convey the messages, just instantly. It's no big difference from telephone or letters. Its the people who use these.
In my opinion, I think my s.o. and I are pretty good in communicating with each other, but we do have our moments where we either misunderstand something or come into a row with each other. It's very healthy and a normal part of any relationship.