AIO for considering ending this friendship over this?

Am I over reacting for considering to not be friend with this person anymore because they keep going off on me every time their husband comes home from OTR trucking. This time it was regarding me claiming the child tax care credit for the child care they provided me (before they randomly kicked my baby out of their in home daycare because she cried too much ). We had a conversation in December where I mentioned I would be claiming this tax credit. They became angry about it and told me I could put their name down but they would not be providing their social. They stated twice they would not provide their social, and I sent them the tax form for whenever a provider declines this. They never sent it back to me. Fast forward to this month. I filed my taxes. I told them when I was filing my taxes. They never brought up giving me their social or offered it. I didn’t ask a third time because from my understanding when we spoke at the end of December she told me to put her name and she was not giving her social out to me. They talked to their tax person today and became angry I filed my taxes and claimed this credit without their social claiming I never attempted to get their social. How they went about talking to me about this felt like they were being rude, and I didn’t appreciate being called a liar when I did ask for their social, provided them the tax form, and they said no so I left it at that.

As for her charging me $50 a day for two kids, I was telling her about an in home day care I was going to bring my kids to and she told me she would charge me $50 a day instead and watch my kids. I didn’t ask for a discount. I paid the rate she gave me. I offered to pay her a higher rate if she felt the work was too much for two kids (she watches 2 other kids as well) and she declined. I ended up losing my job because of inconsistent childcare though.