I have just been wedding dress shopping with my daughter and she also brought along my DIL. She had postponed looking, as I have been in hospital and was too ill to go. I encouraged her to look on her own, as time was running out, but she insisted on waiting until I could come. She only lives ten minutes away, so it was easy to meet up.
However, times have changed and I think young people nowadays have a different "take" on things, so try not to be hurt. Perhaps, she felt she was imposing on you, by asking you to travel to visit her. Also it was probably an opportunity to have a girls' day out with her bridesmaids.
As Sar65 has said, there will be plenty of other things to get hurt about before the wedding actually takes place!
I too am keeping a low profile (apart for paying for it!), trying not to interfere and only helping when asked! I have had to bite my lip on a few occsions, as it's my daughter and her fiancés day, not mine! My mother took all the pleasure out of mine and I don't want history repeating itself.
If it is really upsetting you, choose your moment, have a quiet word with your daughter, but try not to make a big issue about it. I'm sure it will all be fine in the end.