When I was in abusive situations I limited my own contact with my family because I didn't like keeping "boyfriend secrets" or risking the chance they'd find out. It was very scary having to lie to my family about why I couldn't attend events, why my partner wasn't coming to family gatherings, or even the basic facts of how I was doing. I felt intense guilt and shame because I knew my parents didn't like those people and actually warned me against being with them in the beginning, but I didn't listen and thought I knew better. I didn't want the "I told you so" thing, but even worse was my fear that they'd freak out and push me into a dangerous situation by forcing me to escape when I wasn't ready. I was also convinced that if my dad knew what was going on he'd have a heart attack and die.
For those reasons I limited my own contact with friends and family. I knew if someone even scratched the surface I'd infodump and start a chain of events I wasn't ready to confront. That would have meant the financial expense of lawyers but also the risk of losing custody of my kids, which would have made me take my life.
TLDR: - I restricted myself from friends and family because I wasn't ready to take the next steps. Ultimately however, it's still the fault of the abuser(s). It's not something I would have done randomly on my own.
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I never give you my number, I only give you my situation.
Beatles