<human>: A week ago I suffered a huge dissapointment. The kind that is only possible when it seems like you've had your lucky break. 

Long story short I thought she would be interested as she showed strong IOIs. Turns out she has a boyfriend and 
had ulterior motives for approaching, seeming interested and asking for my number 

Good news is I act totally natural and cool around her and it causes me no discomfort.

Bad news is I feel some sort of void. I have the urge to sleep in at mornings (not succumbing to it when there's stuff to do), feel a drop in social presence and skills. I feel more self conscious. My concentration also seems to have suffered (distracted to the point of having to ask people to repeat what they said). I am self conscious again and have noticed some clumsiness.

It is worrisome that a lot of progress I have made the past year seems to be undoing itself. The only thing that holds me together is the fact that my class attendance and concentration hasn't suffered. 

I also fight the urge I got a few times to not go out with friends in the evenings.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: Bitter disapointment a week ago. Feeling low energy, self consciousness, distracted , clumsiness. Fighting the urge to stay at home and college might be the only place I remain unaffected..