I was broken up with that way once. We were in high school. So, I'd say that, yes, there are people, immature people, who use that as a way of breaking up. Really sorry if that's what's happening to you. I'd say, if it's really been a while -- like, a couple of weeks -- just leave the person a message saying "If you want to contact me to tell me what's up I will listen, but I'm assuming we're over and am going to start working on moving on."
The major players. Me, under-30 bi female. Gia, girlfriend of 3+ years. Clay, new boyfriend/dom. Davis, ex/"it's complicated."
The supporting cast. Eric, Gia's husband. Bee, Gia and Eric's toddler. Dexter, Gia's lover. Helen, Eric's lover. Izzy, Clay's partner.