"It's ok if you can't make it. The weather is being stupid. I wouldn't want you to risk your life by driving in a storm. Really, I'd understand completely if you can't come up."
"I know, but you need me there right now, so I'm planning on coming, despite the snow event happening here...."
I'm not sure if you can show being in love more than facing treacherous driving conditions at your own will just so that you can soothe your girlfriend who lives 10 hours away. I mean... to me... that says everything.