My mom is always jealous of my girlfriends?

Sometimes you have to be hard on them, just tell her that shes being a jealous b*tch and until she learns to deal with her own life and stop interfering with yours that she no longer has a son and walk away before she can say anything......it might be hard but its the only way unfortunantly, after your done with you school stuff THEN tell her this not before, stop talking to her, leave her be, and eventually she will get it, but dont give in at first, cause then shell learn nothing and go back to her old ways,