I'm going to leave my cheating wife
What will you do afterwards when you leave her?
I'll move into my own place and throw myself into my work.
It sucks that your marriage fell apart, and you deserve all the answers you can get. I'm glad that you didn't stand for it and broke things up before it would get worse.
I'm going to leave and take all my stuff with me.
Thats good. Leaving your stuff behind will just make things awkward if you go and get them back later.