My sincere sympathy for your loss,
bignaytek... but here's a truth quite evident form all the elements you've provided us with: she is moving on, and it's probably a good thing.
You are 22, she is 24. Look at how many people in this thread think she's much older than that. She has definitely seen a LOT more of life than you have. You just look like a sweet, naive kid. At this age, two years in the age difference represent an eternity... that's 700 days of a person's life, and at this stage in life.... oh dear!
Honestly, don't kill yourself over it. Most of my friends, in my generation, married their high-school or college sweethearts before turning 25, with little or no experience in what concerns the opposite sex or married life... and ten years later, we realize we made the wrong choice, and we're all divorcing!

...and, seriously, a separation at 35 is much harder than at 20.
So, learn the lesson, go on living, don't mope.
The way I know the human race and the two sexes that comprise it, chances are the following quote is very much on the money:
Originally posted by: 91TTZ
Originally posted by: raildogg
I am sorry for this, please give her a chance as well.
So she can return to him after the totally hot hunk dumps her for another piece of fresh meat.
Originally posted by: raildogg
Maybe something has changed in her life.
Yeah, she met some hot hunk, who probably has her bent over the bathroom sink right now.
Originally posted by: raildoggWhat is going on in her life that she has suddenly done this?
The hunk. The bathroom sink.
Originally posted by: raildogg
I don't know if she has abandoned you or not. Maybe something has changed in her life or something. Get to know her better and find out what and why she has done this.
She's keeping the OP in an emergency closet behind a plate of glass just in case things don't work out with this new dude.
Originally posted by: raildogg
Maybe you can even improve her.
lol, you really have no clue.