Is there co-relation between acknowledgement and neglect?

Read the comment by anonymous in Meng Hong's blog. It is as follows:-

its strange how sometimes we only appreciate and acknowledge certain ppl in our lives, yet neglecting others who also care for us..

I was quite taken aback when I read the comment above. It is obvious that anonymous cares for Meng Hong and possibly has a tinge of jealousy there. I could be wrong. Or how else would that person come to the conclusion that by acknowledging one is a direct indication of neglect for another?

Anyway, it did get me thinking. Do I feel that way at times? Do I feel that when a good friend of mine acknowledges someone else, do I feel neglected? Guess to be truthful, yes, I would to. But I would also question myself. I mean there have been times when I have cared for certain people like perhaps 80% (just for example sake) but the other party only cares for me perhaps 10%. Sometimes we perceive the level of our friendships are mutual but often times they are not. It happens. And sometimes we don't realise that we care for a particular someone till we lose them. Or sometimes we don't realise the people we consider as friends are not quite who we thought they were. I mean there are many scenarios that can take place.

However, I won't conclude so easily that the acknowledgement of one friend is the neglect of another unless perhaps the two parties involved are enemies or not good terms. What do you think?