Green fruit stuffed with blue cheese, all inside a gin martini, make it dirty, what fruit am I, that makes it so?

At the start of your school day, you might yell me, These days, I'm also found under a tree. If you still can't name me, Scrooge probably can, I'm his third visitor: Come in and know me better, man!

It's me: your worst possible love. Uncontrollable, more like craziness. I'm the wildest, I'm the unstoppable, I'm a mental disease of sort. You're heart doesn't follow me anymore, but your entire soul does. I've taken over your toughts, hopeless.

I'm a type of joint where you might feel a twinge. Also a dating site where I hope you don't cringe. Spend to much time on that app, and call it a binge. The answer should open up to you on a blank.

Jack bought me before his vertical journey. Add a polite title and I am a funny man, wearing a suit. Add two to my tail and I fit on your head. Change my first and I played the loyal best friend.