It all moves so quickly

So, I've got some catching up to do, as things around here are changing constantly. First, a little background:

I've always thought that I had a good marriage; not great, but good. Honestly, I'm not sure how to separate the two, and that's probably because it's still so new to me. I was comfortable, stable, confident and happy; when we had problems, we aired them out, and did what we could to rectify the situation. Of course, it's not always perfect; we had problems, small tiffs here and there about housework, pets, responsibility, money, etc, but nothing that felt like a serious problem. The only recurring issue we ran into was sex related. It's great, when we have it, and we used too...quite often. More recently though, we've gone in spurts, and desire is an issue. I chalk it up to a number of factors: stress, school and neglect, at least in the romance department. We had long, intense talks and fights and reconciliations about it, but we have yet to really resolve the issues here. I can't help but feel largely responsible. So, fast forward to about a week ago, and the next post.