Imagine you're incredibly ill (fever, running nose, headache, pain in your throat) and feel like you are going to die very soon. Please consider texting your girlfriend about it. Communicate! I mean, if you are able to hold your phone and produce something like 'very ill' or 'dying' or such - do that. Of course, if you are dying, your head is busy with other things. Such as composing a testament. Or quickly rethinking your life and regretting the choices you've made. Or wondering how many people will show up at your funeral. All that doesn't make sense. Stop it! Instead pick up your phone and inform your girlfriend on your whereabouts.
Why would you do that? Well, imagine a miracle happens and you are not going to die after all. When you realise that, when you feel life is not going to leave you as yet, when you actually think you'll be able to take part in the City-Pier-City Run or the ING New York City Marathon tomorrow, at that moment of joy the last thing you want is discovering your girlfriend has left you.
Why would she leave you while you were deadly ill? Because you fell off her radar and she had no idea you were ill. Because you forgot to communicate. So she thought: you're ignoring her meaning you're not that into her, or you're ignoring her because you're an asshole, or don't give a damn about her, or you're very unreliable, or you want to dump her, or she gets some other (hopefully more original) idea on why it would be better to break up with you since you disappeared just like that.
So guys, C-O-M-M-U-N-I-C-A-T-E!