I have no damn clue

So he (the ex) comes around expecting me to know that he has made plans for Sunday. Nice to be psychic and all??

He wanted to go to the movies today (this morning) but then got told he has work so he decides to do that instead. Which is fine, because he needs the money. Even though he still gets paid more than me, but whatever. So he changes the plans again to tonight after work, well my work anyways (at about 8pm). But says oh I dont like going out at night after work, which is a lie because we have been out plenty of times after work and hes never complained before. I dont decide he does. And insists that we go out. So you can see why I'm just a little ticked off.

Lol that bit is funny because he said he wanted to plan a fun night for us since he has work. I dont really want to hang out with him tonight. Too much hassle if he hasn't planned anything. I'm not bothered. I offered to do it tomorrow even didn't mind when. But he was just like no and then decides to tell me "oh I will just have to meet my friend from Hamilton when they are up next time. I'm upset by this point because, you dont just make up shit and dont do it, you know what I mean.

Now by this point I'm having a tiny tear tear moment because a) plans have changed a lot b) wasting my time c) some people should tell others they have plans d) lack of sleep....

I dont want to go to movies tomorrow if he has planned something with someone else. I dont care that it's a she. I care that he couldn't tell me properly that he had plans for tomorrow. I offer to go next week. But he says we can go tomorrow morning. Is now put off going to the movies at all. Soooo what should I do??
Am over being told shit and then not doing it. Its good to see the ex can stick to one plan but mess me around in the mean time.