Minnesota.

My wife moved out a few weeks ago, taking most of her stuff (all that she could physically store), all of her two preexisting kids' stuff, and dividing up our 4 months old's things. To move in with her ex, the father of the other 2. We have been doing 50/50 custody with our son.

Now things didn't work out with the ex (i let his new "baby momma" know that my wife moved in and now she's getting full custody lol) and he's kicking her out (big surprise). I've owned the home for more than 10 years, we've only been married for 2. The house is only in my name. We haven't had any shared bank accounts. She left and took her belongings of her own free will, even when i pleaded with her not to. Am I obligated to let her move back in? Will police intervene on her behalf? Would it be considered civil and go to court?