<human>: Can you condense the text into a few key points?

I sometimes consider myself introverted, but I have been coming out of my shell recently. Ever since I was young, whenever I would spend too much time with someone, (i.e. my family on vacation/road trips) we would argue and not get along very well.

The same thing applies to my first and current girlfriend. I love spending time with her and try to do so as much as possible. Time really flies when I'm with her. 

I've just noticed that whenever I am busy one day and can't see her, (We live in the same dorm complex at a university), the next time I see her we get along much better. 

Things just seem natural. We don't argue, we have a great time, I seem to find better words to express how much I love her, and everything is simply bliss. 

On the other hand, if I see her every day for a few days, we start to argue and things aren't so 'natural' anymore. Why is this? Like I said I'm kind of introverted so maybe being alone one day helps me recover?

I want nothing more than to spend as much time with her as possible because I love her to death. Could this issue be worked out? What tips do you have from your personal experience on the subject? What can I do to fix this? Any and all suggestions would help greatly.
<bot>: Could spending too much time with my girlfriend hurt our relationship? What can I do to make sure things are 'natural' again.