e-dultery
when you're too lazy to cheat in person, so you just flirt with someone on the internet until you're both too dumb to stop.
"My husband thinks I'm shopping. I'm actually messaging my e-lover about how dumb he is."
"My online fling sent me a photo of his dog. I sent him a photo of my dog. Now we're married."
"I told my wife I was working late. I was actually eating pizza with my e-buddy."