I jokingly told her that my intentions for messaging her was to Facebook stalk her. In context it was funny.

She responded with an Lol and that she isn't really interesting enough online to be stalked.

I responded with:
Ikr. I was looking at ur profile and I’m like “dang she is boring”. Step ur game up girl. Gosh!... Hmm so u don’t contribute, u just look at other people’s stuff. It sounds like ur a FB stalker

She hasn't responded in a couple of days. This girl is my college crush and Facebook is my only way of contacting her. We also aren't friends on Facebook.

Do you think that I should follow up with another message in a couple of days?

If so what should it be?

Thanks guys. Any help would be appreciated.

Give up talking to her and find girls around you to meet and talk to. Trying to rekindle an old crush who is out of your life is exactly like digging through the trash can. If she wants to talk to you then she'll talk to you.

_________________
The ultimate lesson of psychoanalysis is that human life is never "just life": we are possessed by the strange drive to enjoy life in excess, attached to a surplus which derails the ordinary run of things.
-Slavoj Zizek

Thanks for the reply. That seems to be what a lot of MPUAs are saying. It definitely is the best way to maintain some value and save face.