I have to decide between my mom or my dog?

She doesn’t like dogs, so she wants him outside all the time, I don’t like my dog being outside, I mean I love them two but I’m seriously thinking about renting my own apartment, but at the same time it’s just me and my mom, she doesn’t have anybody else but me, I’m in tears now because I don’t know what to do.
I have to decide between my mom or my dog?
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