I'm going to have a go at my wife
Why would you try to start a fight with her?
i just feel like it; she's irritating me.
If you have a "go" at your spouse, they are likely to get angry as well and you will be arguing with her and hurt each others' feelings. Instead, you should calmly talk to your wife about your concerns and try to speak to her in a respectful way.
Well. I'm really hoping she leaves me and never comes back. Plus, I got her pregnant and I don't want anything to do with that kid.
I'm concerned that you don't want to help raise your own child. Many people think raising a child is the moist important thing they do in their entire lives. Your child really needs you and I'd hate to see you disappoint them.