<p>My guess is it is just at that moment when you called him that he was bored. We all get like that sometimes. We could be going out non stop, but the minute we are not doing something, we think we are bored. I would only be concerned if he sound like that all the time. </p>
<p>This is also just beginning of sophomore year, first year excitement is gone, classes are not in full swing yet, so it may seem a bit boring. </p>
<p>We have 2 girls, so I am more used to complete mood swings. One minute everyone hates me, I have no friends, to I have too many parties to go to, so and so is too needy, and I can´t get my work done. </p>
<p>Give it some time.</p>