Heres my latest messages with a girl who I see in uni occasionally.

Me Monday 23:50
I went out to the town and when I came back I was white like a yeti, haa!:D How´s ____ night going, snowfallish?
Her Tuesday 20:16
Was sleeping and when I went to iceskating with my friends and to see raindeers it didnt snow anymore:D
Me Wednesday 20:38
You missed the snowfall, must have been a good sleep. Im tasting berries that dwarwes brought, theire delicious and look awsome but cant remember the name :S:D
Her 20:56
haha, well yeah it was a good sleep...saturday night I still got just like 10min of sleep:D
20:57
then slumbered whole class like a fool:D
Me 21:13
Haa, I can tell that. Sure you had an interesting night:D
Her 21:15
Well sure yeah:S

Me 21:22
You probably just waited like a little blue-eyed girl for the dwarfs, but they never came:D
Her 21:40
miu yeah
Me 22:10
Guess you´re a girl full of trouble:)

She has read the msg, no response tho..
Im going to message her maybe tomorrow night if she does´nt respond before, any good ideas?

Update:
I wrote her this. "Guess you are:D, we wouldnt get along....We would be like mr. and mrs. Smith, where they start shooting at eachother and and tear up the house, then they end up making out on the floor"

She responded: Sad stories :D

Im thinking of replying with "For you, yeah. You have to earn my trust first to even get to my house"

Clearly she is investing less right now, but I want to change that - hold the power. In order to achive that should I use push/pull and tease or go with risking of losing her and like "I think I should stop talking with you before xyz"
Feedback will be appreciated.