Looking on the internet deeply has found these results:

if you don't tell me, I'll scream! is the most popular phrase on the web.

if you didn’t tell me, I’ll scream! 1623,000 results on the web	if you don't tell me, I'll scream! 11,410,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
I get why you didn't tell me, and I don't think you're bad friends, but overlaps happen... If I find out you knew and didn't tell me, I'd be terribly upset. But, if you didn't tell me, maybe it's because a part of you thought that. If it was Eric, and you guys knew, and you didn't tell me, and then I found out, I'd kill you. You didn't tell me, Roci. Listen. With everything that's gone on between us, I understand why you didn't tell me, and I am not upset. If you didn't tell me, I'd think he's just a launderer But you didn't tell me, so you lied by omission.	If you don't tell me, I'm going to kill you right now. If you don't tell me, I'll be forced to improvise and who knows what will happen then. If you don't tell me, I'll make sure she gets 10 years, minimum. If you don't tell me, I'll find out for myself. If you don't tell me, I'll burn you in your tents and sod holes. You don't tell me, I'll make you slow dance. If you don't tell me, I'll tell Dad you're down there. If you don't tell me, I'm telling Dad.

if you didn’t tell me, I’ll scream!

1623,000 results on the web

if you don't tell me, I'll scream!

11,410,000 results on the web

More popular!

I get why you didn't tell me, and I don't think you're bad friends, but overlaps happen...
If I find out you knew and didn't tell me, I'd be terribly upset.
But, if you didn't tell me, maybe it's because a part of you thought that.
If it was Eric, and you guys knew, and you didn't tell me, and then I found out, I'd kill you.
You didn't tell me, Roci.
Listen. With everything that's gone on between us, I understand why you didn't tell me, and I am not upset.
If you didn't tell me, I'd think he's just a launderer
But you didn't tell me, so you lied by omission.

If you don't tell me, I'm going to kill you right now.
If you don't tell me, I'll be forced to improvise and who knows what will happen then.
If you don't tell me, I'll make sure she gets 10 years, minimum.
If you don't tell me, I'll find out for myself.
If you don't tell me, I'll burn you in your tents and sod holes.
You don't tell me, I'll make you slow dance.
If you don't tell me, I'll tell Dad you're down there.
If you don't tell me, I'm telling Dad.