I've posted about my marriage before on TAM a few weeks ago. My unconventional marriage
Things have gotten much worse since that point.
My marriage isn't a normal one (by any stretch) but it has worked for us. My wife and I have been married for 6 years and we have two kids (4 & 2.5) and she is 6 weeks pregnant with our third right now. We went through a brutal stretch in our marriage a few years ago and she gave me permission to see another woman casually. That spiraled out of control and the other woman - my girlfriend ended up pregnant. She moved in with us and lives with us. I have 19 month old twins with my girlfriend.
Our marriage is strained over this. My wife has always told me she would never ever leave me. But there is more and more tension between my wife and my girlfriend. My wife has been irritable as of late and she has been having constant fights with my girlfriend. I've been playing mediator and trying to make this work but it is getting so difficult.
My wife told me this morning that she wishes she never married me. We have been fighting over what to do with the current tension. She suggested I kick my girlfriend out of our home. I cannot do that in good conscience. She is the mother of my children and is dependent on me. I told my wife I would do anything but that. She told me that she'll never be happy until my girlfriend is gone. I can't and won't leave my girlfriend. Leaving her would be abandoning my two youngest and it would hurt their lives. My wife loves my twins like her own so I don't know why she is being so heartless.
I am hoping some people here can give me some practical advice to help ease my wife's concern. I can't and won't end the relationship with my girlfriend so that isn't an option. I don't think my wife will leave me but it hurts me to see her so sad. I want to fix this. Anything outside of breaking up with my girlfriend is an option. Please I need advice.