Love lost

Me and my boyfriend have been dating since high school we now have 3 kids together. Lately things have been changing he drinks more and when he drinks he gets aggressive and his attitude changes like the other day he started through stuff and told me he hated me while my 8 year was listening to us argue. I’m so over it I just want to leave but I feel stuck because we have kids together....sometimes I wish my mom lived closer so I could leave...... we don’t even sleep together anymore let alone have sex...