There's a social group I'm part of and have been fairly close to the people who organize it for some time now. Last week the main person who runs it was making small talk after the meeting ended, and jokingly asked about a girlfriend. They said "Why are you in such a hurry? On the way to see your girlfriend?" I dodged around it, and they asked again in a curious/serious way. I said yes, and started naming details. The thing is I've been single for about a month, and the girl I spoke details of was one from my class who likes me that I also like, but never officially went out with. I got caught off guard with the question, blurted it out without thinking, was at the risk of feeling insecure as there were a few people listening to the conversation, and immediately regretted what I said afterward.
I hoped that brief mention would be the end of it, but this person has asked about the girlfriend a couple times since. As they continue asking, I have to keep naming details, and the more I do that the more I worry. The details I've said to them are true, but feel like I'm digging myself deeper like it'll eventually get to a point I'll have to provide some kind of proof to this person. At this point I feel I'll have to keep this up until after the holidays because it will sound like something bad happened if I say I'm not seeing anyone before the holidays are over.
There's a girl I've always liked that’s in this group, she has been taken for some time now, but always appeared to like me. She heard the girlfriend thing and has seemed more attracted, not only that but one of her older friends seems to be looking at me differently. Suddenly I'm seen as more desirable to them and don't want to shatter that.
There's no way I can change the subject if this person asks me anything about a girlfriend. The only time to really talk at this place is before meetings, and if something like that is brought up I'll have to acknowledge it then because chances are you won't get a chance to talk later. Also since I've already said details when they asked before, and it'll look suspicious if I change the subject.
I'm worried about even going to future meetings because of what I might be asked about this.
How can I tell the person who's been asking that I'm not in a relationship without sounding like I was dumped?