My wife and I have been married for four years. We recently allowed her ex to spend the night in our home while he was in our area. My wife's son lives with the ex and this gives my wife time to visit her son, but I didn't feel comfortable with it, but my wife said I was being silly. Now the ex has invited himself to use our home again. My wife thinks it's childish for me to refuse. Just curious to know if I'm being an idiot. Thanks