I'm single, But in my experience, cars are more reliable, and when they are in a mood, or things start to go wrong, it's far easier to diagnose and fix the problem... also, with cars, the problem is rarely me.
The good thing about a car is, when you get bored with it or it becomes high maintenance you can just get rid of it and get a younger sportier one........
Your car doesn't get upset if you stare at other cars, either...