My manager told me that if I couldnt deal with a guy sexually harrassing me, I couldn't handle my job. what can I do?

I informed my manager 2 months ago of a customer making very vulgar and inapprpriate conments and made me EXTREMLY uncomfortable and I didnt like being it the store alone with him. She just laughed and said thats just how he is. So i just have been completly ignoring him until 2 days ago when the owner found out because my boyfriend told him he was going to have a little talk with this guy. So the next day she started asking me questions, and said i never told her anything (i know i did) then she makes the comment. "If you cant handle mick then you cant handle this job" wtf? I felt as if i dont allow this i wont have a job. Is there any legal action that can be taken?