Yah - I wouldn't worry about it, just enjoy it.

For women, especially, libido is tied to so much more than just their physical/hormonal state, but is tied to their emotional one as well. If you are feeling confident with yourself and have had a particularly good experience with your husband, you are more likely to have that loving feeling.
Silly story, but true. At one point when I was particularly low drive the suggestion was to just think about it more (which is what you've been doing reading TAM and thinking about the positive experience you've had with your husband over the weekend). My H jokingly got me a blue rubberband to put on my wrist to snap periodically and then stop and think about intimacy. Not only does thinking about it help, but just doing it helps.
I will likely never be as high drive as my husband, but to have sex on a continuous basis really helps make it easier, and if we go longer than normal for whatever reason I start to miss being with him.