Hi and welcome to YT

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It doesn't sound like you have any real bond with this little dog, is that correct? I say that bc you only call it "it" or "the dog" - and that doesn't really convey that you have a bond with this little one.
I'm confused as to what you're needing advice on...is the dog living with you now, instead of the boyfriend's family? Or are you living w/ the bf's family?