Friend help

Mary
So I have a friend who always has issues with her boyfriend and she askes me and I really want to help but I have never been in a relationship and I can theoretically tell her what to do but I can't put the feelings in you know?? And basically from what it sounds like her boyfriend treats her like shit and doesn't care about her. Every time she tries to bring up why she is unhappy he avoids it and I have tried to tell her to maybe take a break because I don't want to just say dump his ass because I know how she feels and how she is worried that if she leaves him that she will be lost without him which I have tried to tell her she won't. I just thought maybe some more experienced ladies could help me out because I'm a very blunt person but I don't want to make it sound bad towards her because I do understand how she feels. Thanks ❤️