Wife's Secret Roleplay

So I'm this stay-at-home dad with two kids and a wife who's been my rock for years. We've never strayed from our monogamous relationship, but last week, she surprised me by suggesting we try role-playing as strangers at a bar. It was exhilarating, she flirted like no tomorrow and asked if I wanted to 'get away with her'. The thrill of almost pretending to break faith felt so naughty yet intimate. We ended up not going further, but it's made us laugh and playfully eye each other differently since then. Who knew our marriage had this kind of spice in it?