I really love the way you ended it. You can't reap what you sow.
This is also what I noticed myself. So far I can say I am glad to have some few comments on my posts from the relationships I have built by commenting with other users but there is also one thing that annoys me which is when I comment on someone's post without having a reply to my comment, it pisses me off that I might not comment on that person's blog again when it becomes consistent.
I can understand how it feels but we have to keep doing what we do, maybe some people don't deserve a bit of attention, so don't give it to them. But don't focus your emotions on that
Yeah... Thanks for the advice.