Need advice please

So my and my boyfriend broke up Sunday after almost 4 years of dating. His family was like my own and his mother was one of my best friends, I don't think he's told them yet that we have broken up but anyways I was just wondering what I should do with his family? Like should I unfriend them? Keep them? I have no clue. There's soooooo many on there and I don't want to seem like a bitch because I I friended them but then again Idk if they see a point in us staying friends lol advice please??