Years ago. Back in middle school I was on the Warrior Cats Forums a bunch (waaay back on the original site, with the hideous blue and green theme), and there were quite a few people I became close to. I don't really know if you could call it "dating" at that age, but there was a girl on there I talked to a lot. She mysteriously disappeared one day though, and nobody knows what happened to her.
There was another friend I met pretty soon before the official WCF died and were re-made by the community, and we talked off and on for a while. The last time I talked to her was junior year of high school if I remember right. I wouldn't say we ever dated, but we were close at one point. She was always trying to invite me to group chats with her other online friends, and they did not like me at all. Or only one of them didn't, I'm still not sure. All I know is at least one of them didn't want me there, and nobody else really seemed to care about it.
Nowadays, I don't really try to get close to anyone. I just kind of stick to myself. I wouldn't say I'm happy this way, but I'm content, if nothing else.