I suggest that you try a metal reel in future. I've just bought one after a similar disaster. I've always had mixed results trying to get 120 film onto a plastic reel - it just seems too wide to manage the film and the reel reliably and then it either winds off the reel again when I work the 'wheels' back and forth or it gets so far and then jams. The problems really happen if you take too long, because sweaty hands make the humidity go up and vice-versa and then the film gets sticky too. My first attempt with a metal reel took five minutes from start to finish. [I pulled the stuck film off the plastic reel and put it in the empty developing tank until the metal reel arrived. At least in my case the film was B&W so the crease marks look 'artistic' (ahem)].