You need to have your own wife.

A wife is like a nuclear weapon; you can choose not to use it, but you can't do without it.
If you don't have a wife, when you visit a friend's house, you have to be as cautious as guarding against thieves, watching you closely, afraid you'll glance at their wife too much.
During meals, they also don't dare to call their wife to sit next to you.
So once you have a wife, everyone is more comfortable and at ease.