What should I do?

My bf leaves me home alone w our four month old baby.

Abt 3 Years ago my bf invited me to hang out w his friends .. However I'm not a late night person. One time while hanging out I became sleepy n my bf refused to drop me home, I became angry n his friends noticed. Since then he My bf stopped taking me out since.

Last night his friends dropped him home and I know they all went to the beach during the day. I was home alone w baby.