:( am I being stupid? pic attached plz comment

Brooke 🎀
I woke up today with bad tonsillitis and I had a really bad sleep. Didn't sleep at all, my gf told me all day how she can't wait to see me and we are just going to cuddle and I was going to cook spaghetti tonight ( something easy ) as I don't feel well.
And then she msges me just then saying she is going to go hang with her friend instead? And basically ditches me??? 
I am actually so upset about this.
But she doesn't understand this? 
It's basically all my fault for getting upset saying she ditched me to go hang with her friend 
(I'm green text she is white text )