<human>: Can you condense the text into a few key points?

My girlfriend and I have been in a relationship for a year long distance, we met in person and we've met since then since she's from the US and I'm from Canada. But we haven't seen each other since the beginning of December due to health emergencies on her side, work and debt from said medical stuff. 

Meanwhile I've been busy with school and work as well where I live. But the problem here is that from time to time, and up to including most recently and a tad more frequently it seems, she just shuts off for a week. 

This means, no texts, no emails, and not online on skype. Sometimes it's a week, in the past it's been 2 weeks, or as short as 5 days. Regardless, it makes the long distance we deal with seem more difficult than it already is. 

Her reasons? either it's that her phone wasn't working, tired from work, time for herself. We already don't text that frequently, besides the gaps, I'll usually get a text or two from her in a day on average and a Skype call a week. 

This last communication gap got under my skin after she texts me saying she got her phone upgraded she says a bunch of sweet things and asking how my weekend was. I may have been snide but I said "Hey I would've appreciated it in the week it took for you to get back to me that you could have made time to at least email or communicate in some way, shape or form." and she replies saying that she doesn't like my tone and that she'll "skype or whatever" when she gets home from work.
<bot>: Long distance Girlfriend of a year frequently takes nearly weeklong breaks of communication altogether. She doesn't like my tone when I'm upset over it, am I being unreasonable?