Why does she treat me like a child?

Eina wrote:

My mum has fallen out with my boyfriend, over a row about him staying over too often. She now has forbidden me to see him and, tells me he's no good for me, I'm 19 years old why is she still treating me like a child.

Dear Eina

I can think of two possible reasons:

1. You're acting like one
2. It's her house; her rules.

You decide which applies, then either shape up - or ship out.

Over to you.