Sol, sorry to see you here but sounds like you're at peace with it. You tried, you hung in there, you gave it your best and it's time to let go.
You're young and don't have kids so that's a good thing in these situations. You may want to read brenalim's thread here in this section since she too is in a similar sitch as you.
Me: 35|WAW: 38|D: 6yo | http://tinyurl.com/2dxx7m6 Feb 2006, left, came back in two weeks Aug 2006, left again Apr 2007, filed for divorce Dec 2007, reunited Mar 2010, moved out, filed again