Possible betrayal and wrath?

It's a strange thing to go psychotically jealous about, but basically the only person who I *know* the ex was interested in, and who seemed interested in him, has just offered to visit me here next weekend.  I am really really not ok with them hooking up.  I was half not planning to be here next weekend (it's my birthday, and a different visiting friend has made noises about planning a weekend away), but having her in town with me not around just really doesn't make me comfortable.  She's a very good friend of my brother's, and she knows the ex almost as well as she knows me (so not very much), making him almost equally fair game to email for crash space.

The ex and I briefly discussed not dating anyone else immediately, but if she were here for only a short time, and available....I don't know.  Maybe they would think it worth it.  If so, I don't think I'd be interested in talking to either of them for a very long time, if ever.  There was a different very good friend of my brother's who dated a couple of my ex boyfriends sequentially, and it freaked me the fuck out.  The only time she addressed it directly to me, she said something like "you seem to have a talent for serendipitous harmony", or something equally weird.  They were my exes by that point.  Yes, I have some taste.  But still...

I'm secretly hoping she'll reconsider her plans for, oh, a few months from now.  When I don't care as much, or care differently.  Or that she really genuinely wants to visit me, and not just the city.

(no subject)

So she's almost definitely coming--she has a holiday she wants to make use of.  I've now invited her along to hang out with me and this guy, or otherwise hang out with me in general.  We'll see.  I don't think she has her own network of friends here, but she's cosmopolitan enough that she might.  If she's coming as my friend and my guest, then I feel it won't be quite as unreasonable if I ever sit her down to talk to her about not fucking my ex.
And it'll be lovely to see her--she's generally great company.  Bah to the whole situation.
So it's now an hour later than I had wanted to go to sleep.  Bedtime, take 2!