<human>: Can you succinctly summarize the text in 1-3 sentences?

She's stressed because my father has to go back home for a while to work so she picked a fight with me. I calmly asked her to leave me alone because it'd turn into a fight but she kept going so I retreated to my room and refused the food she made.

She was furious so she sent me a message to say that she'd "told my sister" (like that matters at all to me?) and that she'd asked her to give the ISP a call today to cut off our internet line.

I'm 20 years old, paying rent (just under half of the monthly fee even though I only use 1 room in the place and usually only eat my own food) and have a stable job.

Do I have any right to tell her she can't? I feel like I do because I'm paying her to live here, and she doesn't own the property. She heavily relies on the internet herself so I doubt she'll go through with it anyway, but what am I supposed to say to her to stop her doing this?
<bot>: Things aren't good between my mom and I so she's threatening to have the internet cut off because of arguments we're having. I pay to live here, do I have any right to tell her not to do it?