This properly boils my blood. YANBU @mrsfennel I know a few people who do this. Even DH does it occasionally. I say 'ERRRM, I am TALKING!'
It smacks of a arrogance, as the person clearly thinks what THEY have to say is far more important. It's bordering on narcissism. DH rarely does it thankfully.
One woman I know on my street is a bastard for this. Chats incessantly herself, about herself, her dogs, her son, her grandson lalalalalala, and when you try and say anything about ANYthing, her eyes wander, and you can see she doesn't give a shit about what you are saying. Her mind is working overtime, trying to figure out at what point she can cut you off to talk about herself again.
The worst type of person for me, is one I have experienced twice in the past few months... I have been talking to an acquaintance- and a neighbour (once in town, and once in my street,) and we have been in the middle of a conversation, talking about certain/various things.
TWICE in the past few months (2 different people, 2 different occasions,) someone the person I'm talking to knows, has barged into the middle of us, cut off our conversation, and said (to the person I'm talking to) 'oh hello Carol, how are you? I haven't seen for for aaaaages. How's your Dave? Have you been to the pub quiz lately??? Blah blah blah' And they completely ignore me. Act like I'm not there, and turn their back on me... (after cutting between us.)
I am quite cross that on both occasions, the person I'm speaking to has made no attempt to say 'actually, I'm just chatting to Danni here, I'll catch up with you soon.' I am just instantly excluded from the conversation and stood there like a fucking clown.
The first time I just stood there for a couple of minutes thinking 'the woman who butted in will introduce herself to me in a second,' OR the person I'm speaking to me will introduce me.... but they just carried on chatting together. Not even making eye contact with me. I just said 'see ya later then' the first time, and the person I was talking to said 'oh bye for now, take care... see you soon...' I just carried on walking off.
The second time it happened (about 2 weeks later-with a neighbour from 6 doors down,) someone butted in as I was telling this neighbour about something that had just happened in my life that had upset me. I was in mid-flow chatting, and some woman came past and said to my neighbour 'oh hello Pat! How is John? Lovely day for February isn't it?' And Pat just turned away from me and started talking to her.
I stood there for a minute while they both chatted and ignored me, and then I just walked off without saying anything. As I walked off they both went silent and I glanced back and they looked a bit shocked. Don't know why as they clearly weren't arsed about talking to me.
And no I did NOT say 'aren't you going to introduce me.' Why the fuck should I? I was chatting to someone, and deep in conversation, and some ignorant fucker interjected and completely cut me off and ignored me.' Nasty and rude. And as I said, the person I was talking to is almost as culpable for allowing it to happen. I haven't spoken to said acquaintance or neighbour since - haven't even seen them. In my opinion, they owe me an apology. I probably won't get one, and if I don't, then I probably won't stop to talk to them again.