Know what, I don't know why, but I found the same thing happening to myself.
Now, I have bawed at movies and shows before (meaning, teary eyed and emotional) but they were few and far between (Forrest Gump, Life is Beautiful). Generally, the quality and amount of times that happens generally coincides with my judgement on how good the show was. I think it has to do with me watching it in private for hours at a time, making the emotional connection that much more stronger. The thing is, it's getting more and more intense. Like, what, I watched Cowboy Bebop a half a year ago when I was starting watching anime, and I bawed at Speak Like A Child and the last episode. The next series, it was twice that much. The next, even more. And so on, and so on.
This stuff's turning me soft