My first ex (who I honestly don't even want to count as an ex because our relationship was so short and so meaningless to them it shouldn't) and I...well, we never really talk. Like, there have been rare times when we would play the same game together and kind of be friendly? Except, well, I'd be more cold and standoffish and just in general kind of sarcastic towards them. Mainly because I didn't know how to act after that (still don't). But there were rare times when we would actually talk for a while and it wouldn't be super-awkward or anything. For the most part though, we're just friends on Facebook and I haven't heard from him since...almost a year. Don't particularly care if I ever hear from him again or not.
My other ex, the one I actually do count because it lasted the longest and I felt it meant a lot at the time, he just recently started talking to me again. Out of the blue. Just a year after he selfishly ditched me lol. But yeah. It seems he regrets what he did and would like to have me back, but I have no intention of doing so since the things he believes are just all kinds of wrong to me. But I still talk to him if he talks to me first, since I'm not really up to being all friendly again. It's more like, I don't hate him, but I don't like him, so I'm kinda indifferent to his existence.