I was in the same situation, hot-then-cold jw 'friends' who were backstabbing bullies--just socializing with me sporadically because they felt guilty. [2 exceptions only.] But that's to be expected really--most human beings are douchebags and when they're forced to pretend they're nice, it doesn't work out too well.
Create opportunities for your daughter to socialize in a fun and healthy way with non-jw friends. 14-year-olds in totally unstructured situations may get her radar up--peer pressure and all of that. Structured activities at first will reassure her no one is going to turn her into a drug-crazed, demon-possessed, prostitute nudist in the first 15 minutes.
She needs to be around kids her age to develop socially. None of that occurred with me, and I can tell you it took me years to heal the resulting social retardation, with lots of avoidable pain for me and others. Seriously--this is a developmental need.