OK, I KNOW I am not right right now so someone please, pop me upside the head!

OK, heres the deal. I work a LOT of weekends. Just finished working 2 in a row in fact. K works M-F no questions, no nights, no weekends. OK. So I have been looking forward to "MY" weekend for what feels like FOREVER, looking up hikes that are nearby. Getting myself all geared up to GO OUTSIDE...to BE ACTIVE. So last night he tells me that he has made plans for us to spend the day with his mom....and I am still angry. Thing is, I know its not right. I feel guilty about it....but also still angry. Its not that I dont like his mom, shes a wonderful lady, has helped us out a lot, shes great.....but I wanted to GO OUTSIDE. No, she wont go, it will be a dinner someplace. le sigh, even more calories....man, I am so mad, i wanna cry.