Unbelievably Disappointed

It is definitely unbelievable. How can someone older than me be so immature? Though we have never met before, having only interacted (a verbal fight actually) online, I still find it hard to believe that both of us came from the same school (abeit many years apart). She actually stops my posting from appearing in the Yahoo! Group. Never know that she can be so petty. If anyone should be angry, it should have be me. I have already left much of the unhappiness and misgivings she caused me behind such that I thought I can work with the group again. But now for this to happen, I am really disappointed. How scary a person's character can be...