ex girlfreind .....

My conclusion is that marriage is not equal to commitment.
I know a married couple who are not committed to each other. The husband goes out to topless bars all the time and brags about it.

I have yet to see a committed couple survive breaking the definition of "being committed" and still be considered as such. When it comes down to the wire, marriage or not, you are either committed or you are not. There is no middle ground and marriage does not change this.