<human>: Can you summarize the given text in a few sentences?

This is something that we've been dealing with for the entire two years we've been living together and I'm so sick of it. 

A few weeks ago, I came up with a cleaning schedule because I hate having a messy place and my girlfriend doesn't always pull her weight. I thought the schedule would fix all that. Everything is divided up equally and we both agreed on it. It alternates so Monday is my day, Tuesday is her day, Wednesday is my day etc. There are only one or two things for each of us to do per day, its not like a whole list of stuff. It worked great for a little while, but she has a hard time sticking to it. 

That brings us to this morning. The same dishes have been in the sink for three days. I texted her and said "I noticed you didn't do your chores yesterday :-)" I thought that was gentle and non-accusing, but apparently I was wrong. Her response was that I should go grocery shopping then. I asked if she was mad and she said something to the effect of "I hate it when you nag." Bitch, what? Nagging is repeatedly asking and harassing someone and that's definitely not what I did. 

Were still texting about it right now. I really wish we could talk in person, but she's at work and so am I. I'm pretty pissed right now. I feel like if I don't say something to remind her, it won't get done and all the cleaning will fall back on me once again. I've explained that to her, but she just doesn't get it. 

Am I being unreasonable? I try to be super sweet when I remind her, but it doesn't seem to matter. And its not that often that I do remind her, so I don't feel like I'm nagging. I'm leaning towards just doing all the cleaning myself so we don't have to deal with this. She just told me that she's gonna do some cleaning this evening and she loves me, but I drive her crazy... :-(
<bot>: my girlfriend and I have an equal distribution of chores that we both agreed on, but she doesn't follow it well. If I remind her, she gets very angry and passive aggressive. I don't know what else to do.