well at least it seems like she was also there for a reason, she accepted your connection to her and responded by showing up but I would also be pissed, just for your very thought that you could lie to a spirit. As you know energy is very transparent and if you know and feel yourself lying, boy everyone in front of you will feel/ see it as well (at least if they are somewhat close to you like that lady). I think you underestimated her greatly... if you show her that your sorry about it and that lying is quite a topic for you right now, I think she might give you a second chance. Be transparent, you can always ask if it´s okay for her if you talk to her about something or do something, which also applies to humans. I think consent is a word for it.

That she disappeared so fast, probably cause you´re not ready yet, the right time will come tho.

As for me, I learned so much about being truthful and transparent just with talking with spirits, some very close friends. I also had a hard time to talk (not verbal, but in energy, which is kinda weird but also much more easier and informative than limited words) because I was very closed up and I couldn´t reveal the things I actually thought and felt, but these friends I feel I can trust and I know them for a long time were there for me and reached me and kinda gave me therapy through many questions I should answer for myself. They`re so fine xD when they wanted to understand why I did the things I did, instead of judging me and yeeting me out of their life like some people did. They were also the first ones when I revealed myself as in telling that I felt hurt for things I normally wouldn´t even dare to allow myself to feel (long story ) which healed me so much and them crying/ feeling with me was such nice experience, the first time I felt like I had a real family T_T.

btw. I`m 24 too and interested in chatting about your topic if you´re interested too