That 1 friend

I live with my best friend and she keeps meeting these crazy dudes like tomorrow she's meeting this guy and his brother is tagging along.....she asked me to go because his brother is going an of course im gonna go because im that friend.....ugh i just wanna shake some sense into her but she's spoiled and doesn't have to work and the only thing she's worried about is meeting a guy like right now.....and shes 21 and she just gets on my nerves about this and she's jealous because lately i met someone and we've been dating. What do i do about my friend she won't listen to me or anyone.