I told my nephew not to stress about homework and my sister called his school to report me

Chloe posted a screenshot of my private message to her son Lucas in the extended family group chat. It was just me saying “don’t stress too much, mate” after he messaged me about struggling with his biology assignment. She wrote underneath that I had deliberately undermined her authority as a parent and told him to skip his homework. I stared at my phone for a good thirty seconds before I even knew what to type back.

I tried to explain in the chat that it was a private conversation, that I was just trying to comfort him, not contradict her rules. Mum’s sister Aunty Jan jumped in saying I should have known better than to interfere with Chloe’s parenting. My cousin Tom said I was probably just trying to be the cool uncle and it was unfair on Chloe. I felt my face go hot. Chloe replied with a long paragraph about how she has specific homework rules and I had no right to override them. I pointed out that I never mentioned skipping work, just not stressing. She said that’s the same thing.

Then Chloe dropped the bomb. She said she had called the school and reported my interference, demanding they ban me from contacting Lucas. I actually laughed out loud because it sounded ridiculous. She told the group chat that Lucas had skipped his biology homework the next day and she held me personally responsible. I messaged her privately asking if she was serious about the school thing, and she said yes, and that she’d emailed the year level coordinator. I called my mum Helen straight after that, panicking.

Mum messaged both of us separately. She told me to stop engaging in the group chat, and she told Chloe that calling the school was extreme and she needed to pull her head in. Mum said she was sick of being stuck in the middle and that we needed to sort it out like adults. I appreciated Mum backing me up a bit, but I could tell she was frustrated with both of us. Chloe then posted in the chat again saying Mum was taking my side and that the whole family was against her.

I decided to post one final message. I laid out the timeline: Lucas messaged me privately, I said don’t stress, I never told him to skip anything, I apologised when Chloe first confronted me last week, and I had no idea she’d called the school. I said I was stepping away from the chat because the situation was getting out of hand. After I sent that, the chat went quiet. Chloe hasn’t replied, but she also hasn’t backed down. A few of my aunties have messaged me privately saying they think I did the right thing by being clear, but they’re not saying it publicly.

I feel like I’m going crazy. I was just trying to be a decent uncle to a stressed teenager. Chloe has turned the whole family against me over a four-word message. AITA here?