That's a pattern I noted on me, when something big happens with me that makes me feel nervous...not anxious or fearful. Like after getting a school exam done (even this don't seen quite a big thing) I tend to talk a lot... I talk more than I like to or should. But after the rush, I get to my normal indifferent state. Saying some words here and there, smiling to this and those...but realy feel like saying nothing or remember anything to say.
So I presume that when people think they are somehow conecting with me, and that I am some one with something to say, they find a completly different person...again. 'There she is stepping asside and looking cold. I know this is one of the reasons, between many that makes me the weird lonly with no friends...but after those days I talk more than usual I feel pretty bad remember it, fearing talk to those people again. Blahh.
The point I'm trying to make, when I get something new in my life it sort of gives me a short time motivation.