Lost in Space

I couldn't sleep last night. All I could think about was this.... If you were an astronaut and you were working on the outside of a spaceship and for some reason floated away, how would you die? Would it be a lack of oxygen, dehydration, starvation, or would you freeze? I couldn't stop pondering this, so I messaged a friend and I asked his opinion. He very quickly responded with one word.....Freeze. That made me a bit concerned, what if there was a fifth option that I didn't even think of? So I messaged him back. The only other option he could think of was a lack of love. I guess I could call NASA and ask them. For now I am settling with the lack of love, all the other ones seem to messy. Bottom line is that I hope none of us ever accidentally drift away from a spaceship....