dead pigeons only take you so far

How do you talk to a recent EX? Things aren't that much different in the world but they sure do feel that way. So, even though the only thing on your mind is to talk about the relationship in some sense, that's the last thing that should be talked about (in public at least). You can talk about some youtube video of a pelican eating a pigeon, and laugh and discuss the morbidity of that for a little while, but then you're left looking at each other with the imagery of dead fowl in your mind. Then you just feel foul.