Did I lose a friend or Gain a client ?

This is my dilemma should I feel badly or did I win this client fair and square.

So last week I had a sister in law of a friend call me asking if I can do I highlight retouch on her because her sister in law that did her highlights would not do it for her.  So without asking question I told her that I could do it at the school because I was busy at home and was not able to do it outside of school. She came in yesterday and her hair was a HOT MESS!!   There was a lot of under and over processing. I had an instructor come over and help me did the consultation. As we looked over her hair we could not figure how out how her hair was weaved. We informed her that we could try as best as we could to fix it. So as I was prepping her I was making small talk. She told me not to say anything to her in law about her coming in to see me.

 So I was asking her on what had happened. She told me that she went over to my friend’s house and she was doing some one else’s hair and she asked her if she had time to do her hair. So she did them while the other person was processing.  She foiled her whole head in 30 min, this girl’s hair is really long I was surprised .When I was foiling her hair I could not find any kind of pattern there were spots where the highlighted parts were 2x2 inches thick.  I asked if she was trying to do peak a boos, she said no that she wanted it chunking but not THAT chunky. I tried my hardest to make it blend.  During all of this I did not say anything negative about the other “stylist”. By the time I was ready to start my last section we had an audience of instructor around us.  When we were at the bowl ready to tone her we could not figure out what to use because of all the different  levels in her hair so we decided on just 9N but I had be really careful about where I put the toner ,  cause we did not want the lighter levels to get violet.  So at the end all went well and she is very happy with the turned out.   She also told me that she will now just go to me and that she will follow me to the salon that will be at after graduation which is 30 minutes away from her.  So Did I gain a faithful client or will I lose a friend?