Falling In Love In Two Weeks?

My best friend started dating a girl she met on Instagram two weeks ago. I told her it’s too fast to get into a relationship but now she’s posting everywhere that she’s in love… and they’ve already said “I love you”

I tried explaining to her that you can’t really know someone in two weeks IK FOR SURE that girl doesn’t even know my friend’s personality yet 😭 but she told me I should get more dating experience before giving advice

Am I crazy? Her last relationship took six months to get over I’m concerned for her mostly because there’s a MAAJORRR thing connecting them so if they end on and terms it’s gonna be really really bad (like life long 😭) idk should i just mind my business 🤥