e-dultery
when you talk to someone online so much you forget about your actual lover and start thinking that person is your real lover.
"My husband thinks I'm working. I'm actually messaging my e-buddy about how much I hate him."
"My online lover sent me a photo of his cat. I sent him a photo of my dog. Now we're married."
"I told my wife I was going to dinner. I was actually eating pizza with my e-buddy."