I agree with that one. Actually, asking along the lines of "why can't you make plans like everyone else" reads kind of judgemental - there it the "be like everyone else" (because it suits me) imperative. Asking with a genuin wish to understand, without the need to figure out a solution right away, may be way better.
Oh God no, I would never actually say it the way I wrote it!!! That was just me being pissy and snarky here in the pseudo-privacy of my blog

What I've said to Dag is that it's stressful for me not to have some kind of schedule, and that I'm rarely up for doing anything at the last minute, so scheduling dates a day or two in advance makes it a lot more likely we will see each other.
Your list did help

In general I'm fine with lateness, cancelations, etc. I just get tired of every week going through the dance of me asking him when he's free, and him saying he'll let me know, and then nothing until I ask again. What ends up happening is that I just don't make any other plans, ever, I sit around and wait and see if Dag will end up wanting to hang out.
And that sucks. I get bored and lonely, because I don't see my friends during the week. I don't engage in any interests that require large chunks of time or advance planning. I don't keep up with day to day shit like mowing the lawn, because omg what if he calls but I'm too sweaty to run out and meet him in an hour???
The brief period of trying to stick with a plan of "I'll schedule my life however I please, and if he wants to see me he'll have to ask ahead of time!" was a mixed bag. The rest of my life went from crappy to amazing. But I didn't see Dag at all. It kind of just confirmed for me that 1) not having a schedule was seriously fucking up my life, and 2) if I want to see Dag, I really do have to sit around and be "on call" 24-7 for last minute time with him
So, I am asking what prevents you from saying this to him:
"I don't understand your indecision. To me it reads like you don't want to come, but are afraid to say so. Or that you're waiting to see if anything better comes along. Both of which make me feel like shit. So, which is it?"
Now, saying that to him could be a risk -- you might not come across as the picture-perfect, amiable, wonderfully accommodating, and totally accepting girlfriend -- but so what? You know, it's okay to express your irritation or displeasure with someone, and to shake things up by asking difficult questions. At least you'll have more of a chance to get a real answer instead of some response designed to placate you.
Honest answer? I don't ask that because my self esteem is so tanked that I no longer feel like I deserve a boyfriend who cares how his behavior affects me.
Sad, huh? But true. I used to think I was pretty awesome. Not perfect, who is? But smart, funny, pretty, in shape, with interesting hobbies and work and opinions. Someone worth having as a friend or a girlfriend. These days... I just sit around and wonder if Dag is tired of me because I'm fat or because I'm boring. I'm just really down on myself these days. It's not just "Dag doesn't think I'm important" or "Dag doesn't think I'm skinny or pretty enough". I've generalized it, so now I feel like *no one* will think I'm pretty or worth dating. So I kind of just settle for whatever Dag will give, because I imagine no one else would even offer me that much.
[rant]
The other day I showed Dag the floor plans that I designed for our lake house... All he did was read the room names aloud - "Kitchen, dining, bedroom, bath" and hand them back to me. I tried to show him where the house will sit, the views the windows will have, different flooring ideas... And he just nodded and looked back at his phone. No interest. Which is ok, home design isn't everyone's thing, but I was hoping for some reaction to how hard I'd worked. Maybe some questions or something. I did CAD elevations and plumbing plans and electrical plans - ALL BY MYSELF. Hello I got mother fucking BUILDING PERMITS with those! Just me and my Chief Architect software! Look away from your phone for five minutes, please.
In contrast to that, Dag is into Marvel comics, characters I knew nothing about. So I read all the old comics and all the internet commentary and watched many PAINFULLY AWFUL movies. Superhero stories aren't my thing, but he really loves them, and can dissect them for hours... and I wanted to support that. Be part of it.
[/rant]
I know I'm in a shitty emotional place right now. I genuinely don't understand how I got here, to being this girl begging for scraps of attention. And more, to feeling like I don't deserve more than scraps, and should be grateful for them.