When I was DF'd I began sitting next to another girl that had been DF'd a few months before me. I never knew her before but after I was DF'd I asked for her contact information and we got together and talked.
Well shortly thereafter she told me that the elders told her that we shouldn't be sitting next to each other OR talking to each other at all on any social level. Since she was closer to reinstatement than I was she really had to abide by this rule.
I think you should provide *some* guidance/insight to your daughter. First as someone else has posted, let her know that you will love her no matter what. Secondly, when things like this happen, ask her, "Gee, do you think a loving God would want this for you?" Or "How do you think Jesus would handle this situation?" With Love...that's how Jesus would handle it!!!
I have a 7 1/2 yr old daughter who was raised until she was 5 yrs old to be a JW. I always attempt to show her how loving Jesus and God are to us when we DO NOT always deserve it. For example, A few months ago I was in the mall with my daughter and a "sister" (who was a good friend of mine at one time) says hello to my daughter and TOTALLY ignores me. Now, how disrespectful that was to me...to totally ignore an adult and speak to a child only? When a child looks up to their parent at this age it's disheartening to see the parent treated rudely. I just said, "Wow...Jesus would not even treat his enemies that way..."
And again her & I were in a small pastry shop and we saw two witnesses in there. They both came up to my daughter and started having a full on conversation with her. Afterward my daughter felt bad for me that these people totally ignored me (I wonder what the staff at the pastry shop was thinking as well). Afterward I told her that God has given me strength to endure this type of behavior from people.
So I'd like to suggest to you to keep bringing it back to God and Jesus and how they love her so much and ask thought provoking questions as to is this what God would want (for her to be treated this way)? In addition, how does she think this fits under God's gift of grace? We don't earn it or deserve it but God gives it to all. So why would God make one go through such pain to get back to Him when one would want to be with him? It's just so NOT GODLY! :)