Trying to break up with an Aquarius

Hi! Don’t want criticism but nearly 8 years with an Aquarius rising. Been through a lot and just recently fell out of love because of negativity within the relationship. He was really cold towards me at first didn’t care and then not long after he’s calling, texting and begging me back. I’m a cancer rising btw. I know I’m mad for leaving this relationship but it don’t work. I just don’t want him feeling the way he is feeling. Help a girl out