I feel so bad today, I'm training in nail services and today I did infills for a client on gel nails I did 2 weeks ago got her and a friend. She had just lost one nail two days ago and rest was just re growth. I asked how her friends nails were because if not heard from her and she said she was really p'd off and not at all happy because they all fell off after 4 days. I said she should have told me because I told her if she had any problems I would fix them, I told her to tell her friend I would re do the set but I just feel so bad. Her friend had really short nails and she was a nail biter so we kept the length short but i just don't know where I've gone wrong I just feel so bad and can't get it out of my head. I don't think she was happy the day she came even tho is asked her several times and she kept saying to me you are doing this wrong and you shouldn't do that, even though she's not a nail technician. Any body any advice if she comes back I just feel scared if she comes back and the same thing happens again x