The new "SATC" flick is amazing. If you haven't seen it, definitely go.
Meantime, here's a classic clip from the series that shows SJP at her absolute best; probably the zestiest monologue of the entire series.
I don't care if you cheated 16 times and fathered 6 children while married to three different people -- there's always a shitty way, or the integrated way, to end a relationship and let someone go.
Here's a lesson in how to react to the bullshit, chicken-shit ways in which we end relationships.