I'm curious to get people's opinions on the following. I sit at a computer all day and have a cell phone. I'm a big communications guy.

I text people and they have issues getting back to me. Recently my cousin contacted me and he since has deleted the app he used, and didn't think about our recent conversation where he reached out due to some stress in his life. My best bud has severe issues with scheduling and texting back. I've asked him why and he just jokes about all that, and says I'm the only one he has this issue with, so it's my creation somehow. However I've sat amongst other friends and they've also complained about this behaviour. As odd and hilarious I find this, it's hugely annoying.

Am I out of line to expect people to respond to communications, not only at all, but in a reasonable amount of time? I find this exceptionally rude that people don't reply, as if they're invisible.

Cheers