Ok, so I'm not posting this in askTRP, because I already know what I'm going to do, but I figure this could be a good "real time" exercise for younger guys, so I will put it out for discussion.

One of my plates [27F] had her birthday over the weekend--Sunday, in fact. She is not my Number One plate, but I am fond of her - she's intelligent, usually fun to be around, and doesn't begrudge the occasional 3-way with another plate[23F]. She got really into fitness in the last year, and toned up nicely. Typically, she's submissive and low maintenance. Unhappily, in the last 2 months, her looks have noticeably, as the wall rears it's ugly head in the distance.

She knows there are other plates, but has only met (and had sex with) the one I mentioned. they look close enough a like to be sisters, which for some reason made it easy. /shrugs

So I had planned to surprise her on Sunday with a nice trip to the city and dinner because I don't mind taking her out on her birthday, etc. So I get up on Sunday morning and read this email from her:

"It's my birthday today and I thought you cared about me enough to give me at least some present, but instead you just like to show off and care only about yourself :( makes me very sad, dear."

I read this, put the "radio" in the "OFF" position, cancel our dinner reservation and ping another plate, who I then spend my Sunday with. I don't know what the "show off" bit is in reference to, particularly, nor do I care.

So I had a fun time with the other plate and maintained radio silence on the bitchy plate. Around dinner time, I received this email: "Really? Not even a happy birthday note?" I am maintaining radio silence and letting the Hamster spin its wheel.

Some additional facts:

I have 3 other plates with whom I am well-pleased. One has met (and fucked) her, although the are not "friends" and do not socialize. Another knows there are other girls, generally, and a 3rd has no knowledge one way or the other (and to whom I have not given nor received a "pledge" of any kind).

While I am fond of her, if this is it, I'm cool with it.

I have a couple other prospects to fill her slot, if I decide to fill it. OTOH, usually, she's cool.

OK, TRP, hash it out. What would you do, if you were me? (as I said, I already know, but hey, let's wargame it out.)

EDITED TO ADD:

So I let her stew in her own juices until Thursday. Then we had a chat about what happened, which was basically her asking why I canceled and went 'no contact' (not how she put it, but in TRP terms) and me explaining that I had planned to take her out for a nice dinner but I wasn't going to reward negative behavior.

She was also expecting, some sort of extravagant gift, evidently, but this is the 3rd birthday she's had since we met (I met her right before she turned 25) and that's never been the protocol.

Oh, and I figured out the "show off" bit. Recently a buddy of mine expressed interest in buying my car, and I thought about getting a Porsche to replace it, which I did. So evidently my getting a new car with my own money a couple of weeks before entitles her to "send me a bill" for her birthday. And it's not like I was "showing off"; it's a nice car, and it came up in ordinary conversation with her - "So whats new?", "I'm thinking about getting a new car", "What kind?", "A Porsche", blah, blah. She was actually more into the idea than I was.

So anyway, I've decided to let this plate fall and break. She just turned 27 and her looks are starting to slide, and her mental "price" seems to be going up. As /u/BPasFuck said, she's hamstering herself into doing what she should do, which is go find some Beta schlub to be her BB. That said, she was surprised as she thought I would cave in, and now has been scrambling to get back in my good graces, which isn't going to happen. Time to dismount and add a new plate to the rotation.

Edited To Add 2: Guess who came crawling back yesterday, trying to get back in my good graces? Yep. But too little, too late.