For some reason I don't see saying "you're selfish" then puffing out your chest and saying "see I'm right" is actually going to be of any benefit to the OP. It's a rather sad and egocentric approach which is a disappointment from one that, up till now, seems to have had solid posts (from what I've seen).
@MissingLove
While I'm certain you are not taking the matter so lightly it may benefit to also consider the difficulties that follow divorce and weigh those as well.
The average time for emotional divorce recovery is 5 years. While many rush into relationships or even marriage, which is likely a good portion of why second marriages have a higher divorce rate than first, it means taking as long as you need, without dating, to have a chance at another marriage actually being successful.
Even those in unhappy marriages suffer this.
If children are involved there's issues to consider there and if you'll be able to get them help to deal with the divorce.
I'm not trying to suggest you should or shouldn't but ensuring you have weighed all options. I've not been divorced myself (or married for that matter) but I have been involved with those that have and seen the damage that such unhealthy marriages have on people. It's a tough choice, but whatever you choose just make sure you've considered the consequences of Both sides and be sure you aren't caught off guard or in regret once an irreversible choice is made.