She has two places to go. The OM or parents. NOT YOUR PROBLEM! Actions have consequences. Also. Keep this is mind. When a Wife leaves a husband for misdeeds. They are supported by their social circles with their narrative and j6stufication for leaving. Her social circle and reputation is paramount to the M in some cases. If a Husband leaves first for a Wife's misdeeds. Or if A H kicks out A W for their misdeeds. A lot of people will ask why? This will set the tone and the precedence if and when they do hit rock bottom. Its indirect pressure without you applying it, but its also tough love, and emotional and familual protection on your part. I'm not saying strike first or D... But the more you time you let this linger, the more respect she will lose for you, and you for yourself. If W is tied to the house deed. Legally speaking you can't kick her out. But you can ask her to leave. Start by boxing all her stuff up for her, and get it our of the MBR and see how the response goes.