I would like to know why me in advance, other than that I'm happy to talk to him.

Thank you for waiting. Bella can speak with you in a minute but would like to know why you want to talk to her in particular.

Iiii'm concerned it will sound insane and I don't have a good way to verify that it's not insane to a third party.

He relays this.

Tell him in my day job I talk to insane people all the time and it's not going to disqualify him.

Bella is a therapist and says to tell you that in her day job she talks to insane people all the time and it will not disqualify you.

...a therapist. That's weird.

...fine. My name is Campbell Mark Swan, I am not from the prime material plane, and I think she's an alternate universe version of me.

Oh. You know, I don't know why we were assuming they would all be girls. Okay, I'll put her on in a second.

Wait what.

T'Mir and Bella are alternate universe versions of the same person. We figured there were more but we were quite occupied with evacuating Materia and hadn't yet got around to developing a spell to go and find them.

And to Bella he conveys the declaration of Campbell Mark Swan that he thinks he's 'another Bella', as Fëanáro would put it.

Oh. Uh, well, I'm in touch with another five of us but when I came here I got a little stuck because this plane's all weird. We are mostly girls, two exceptions.

Huh. I guess that would sound pretty weird if we didn't know about T'Mir already.

Yes, I suppose it would. And he pops over and hands her the earwire. 

"Thanks." Hi?

Hi! Welcome to the club of Bells Who Have Landed In Ardas And Fucked With Them.

Is this a pattern?

Yep! Not universal but definitely a pattern. Uh, there are alts of Fëanáro's family here, FYI. His own alt is not alive here, he didn't cope well with the place, but his father and half-siblings and their kids.

Oh boy. Okay, uh, we'll have to address that - can you give me names so I can call them -

Hang on, let me get a more complete list.

"Hey Iris guess what."

"You're smiling so - not Sauron."

"Not Sauron!"

"Awesome! ...something better than not Sauron, huh?"

"Pretty sure it's two of my alts who have found each other and started evacuating the world. One of them at least swung through an Arda first."

"Wow. Well, good for your alts."

"My alts are great. I'm totally going to solicit disappearing, but she wants names for all your relatives so she can call you."