I can't stop thinking about this dream, so I'll post it...

Here is what I can remember:

I was driving a motorcycle with my girlfriend on the back, we go into traffic, and get hit by a car. I'm unsure what happened next, I think my dream just moved to a place with my friends, and they told me she died. I started crying a lot, then I woke up because of that, and felt like complete shit... I haven't told anyone about this.

What do you think? Is this something I'm worried about? Oh and by the way, she really wants a motorcycle.