<human>: First post here.
First of all, I'm a college freshman. My friend and I have been best friends for 10 years. I started smoking weed this year with a group of friends I met here at uni. I'm really strict about smoking maybe once a week, and never letting it interfere with my schoolwork, and I'm maintaining a 3.8 GPA.
My friend and I have shared everything in the past. While she 
doesn't smoke, she says she's "okay with it."

She's clearly not. When I casually mention I'm at my friends' house, she gets extremely bitter and passive aggressive. She sends me pictures about how marijuana use can cause brain damage and "birth defects," and no matter how many times I tell her I get it, she makes fun of me, yells at me, basically makes me feel like a piece of shit even though I understand my recreational drug use does not make me one.

I want to continue being friends with her but I don't know how to tell her to stop belittling me and yelling at me like she's my mom. I feel like if I told her flat-out to stop, she would play the "I'm only worried about you!" card.

Can you condense the text into three sentences or less?
<bot>: I smoke. My friend doesn't, and seeks to make me feel like a trashy piece of shit for doing so. I need her to stop.