ok basically, the girls my ex all went to shit, i then forgot bout her cause she refused to talk to me, cause i was a "dick" who couldnt be trusted

..... anyways she went off got a new bf etc, but after a couple weeks starts trying to talk to me on FB, so thats all fine but its kinda doin my head in having a FB friendship, so im thinking time to just ask to meet up, i was thinking something along the lines of
"hey [name], i haven't got much going on this weekend, so how bout i take you to the cinema and we watch a film. you game ?" any advice or suggestions on how i could improve this? , some are probably wandering why an earth do you want to anyway :L , suppose it would be a good opportunity to just judge things, look for IOI's etc.
also if she does say no [probably quite likely given the history :L] what should i say , just something like
"ok well i dont want to have a friendship online so your choice" ?
thanks in advance

Whistle