Thanks guys,
I dont actually have her phone number if I wanted to contact her it has to be FB for the moment.
I ended up sending her a banter message referring back to that night to remind her emotionally of it, she responded in a friendly manner so I asked if she wanted to hangout but put time constrained on it as I am away on holiday next week. She took over a day to respond then came back with something along the lines of
"Aww That sounds great but Iv kind of started seeing somebody recently, but thanks for asking. Hope you have a great week away

"
I responded with: Ok cool, ill strike you off my to-do list

It got a lol then that was the end of the interaction. I wont attempt to contact her again until I see her out then it will be game on again.