My mother-in-law overheard we were moving into a luxurious new house and decided to move in that same day. She sold her house and came to visit us, unaware of our plans. Then she called me in a panic, crying: “Where’s the entrance? Where are you?” I couldn’t help but laugh, because it was exactly the moment we’d been waiting for.

Marcus and I exchanged a look, but neither of us responded. It was unusual for me, because Diane had spent most of our marriage tearing down barriers, calling it family closeness. She had a way of saying outrageous things in a cheerful tone, as if refusing her advances would make you rude. The truth was, she’d been testing us for months. She complained about having to manage her household. She mentioned the loneliness she felt. She’d started referring to our move as our “fresh start.” The more she spoke, the clearer her plan became.

Then, two weeks before the closing date, she called Marcus and nonchalantly announced that she had put her house up for sale.

He put it on speakerphone. “Why would you do that now?”

“Oh, don’t look so surprised,” she said lightly. “There’s no point in me staying here while you two wander around that gigantic new house. We’ll save up and stay together. It’s perfect.”

I remember staring at Marcus as she spoke. He seemed as stunned as I was, but beneath that expression, I saw something else: determination. We’d spent years trying to handle Diane gently. We’d explained, taken our time, softened, redirected. Nothing had worked because she interpreted every kind response as a license for the future.

That evening, Marcus sat across from me at the kitchen table and said, “I’m done. If we don’t stop now, we never will.”

So we came up with a plan.

We didn’t correct Diane when she kept talking about moving day. We didn’t give her the address right away. We let her assume whatever she wanted while we silently finalized what we’d already decided weeks earlier: the new property wasn’t actually our permanent residence. It was a luxury property we’d purchased through a limited liability company with another couple, designed for short-term rentals and corporate leases. Our real home, the one we’d chosen for ourselves, was a private house in a gated community, registered to me under Marcus’ middle name. Diane had heard “luxury home” and had drawn her own conclusions with an air of superiority.