I'm not an adult?

I can not understand why my mom insists on treating me like a child when she knows for a fact I'm not.Not just because I'm 18 but for all the other things she has seen me go through.At some point the "you'll always be my baby" thing is going to get old.As a matter of fact it's already old news.She acts like a 20 all the time.She never thinks things through and she always makes difficult.I think the reason I get angry about it because it feels like I'm being chastised by someone who has no business doing it.If we're in a room together and there's a guy in the room with us,she assumes that I'm in love with this guy and she yelles out "he's too old for you".Embarassing and unnecessary.Like I'm this little girl with raging hormones,who wants to sleep with every guy I see.She tells me that I have suffer to be a women but about being responsible,that makes an adult too.If my mom had to define an adult she'd describe herself and if I would describe a women I'd describe me.This is definetly a venting blog post because I do care if she sees as an adult,she's my mother and as much as it kills me to admit it,her opinion of me matters.I think she's going to make me jump off a cliff,unless she just bugs me to death.