Peeking stop a flatline but it is a relapse.

Unless you're having regular actual sex, IMO what we call "flatline" is simply just one's "contention" (for lack of a better word) with the nature of "not receiving sexual gratification". Not saying people shouldn't receive sexual gratification, but it should be via actual sex not 'fap/PMO.

In other words, NoFap is simply the natural thing that happens when you don't receive regular and/or actual sex, and "flatline" is what happens when you.....well, (also) for lack of a better word, "lose respect" for this completely natural phenomenon.

A funny analogy might be to think of it as a "comedy roast" ---> "flatline" is when the guy in the hotseat can no longer well or "gracefully" (also for lack of a better word!) take/accept the presented quips. When this happens NoFap users might sometimes either "relapse" (to relieve sexual frustration) or "flatline" (forcibly or somehow otherwise "bury/suppress" anything libido-related that's creating such tension in the first place). Both actions (not to sound too harsh!!! but...) are IMO a complete disrespect for how nature is supposed to work (and what sexual frustration is supposed to compel one to do ----> have actual sex!)

 

Maybe you have to rethink the underlying reasons for NOfap in order to enforce them

 

What you described is not flatlining. Check out the glossary here:

https://www.nofap.com/glossary/

 

Viewing P while abstaining from MO is basically making a mental mockery out of NoFap. It's like teasing your brain "Haha! Look I can get all this stimulus just from viewing things online!" This is what accelerates one to either "relapse" (relieve sexual frustration) or partake in "flatlining" (try to bury/suppress libido and anything libido-related that's causing this tension instead).