You read the message again. And again. You parse the punctuation, time the reply, run it past two friends, and lie awake building a case for what it all means. Overthinking every text from an ex is exhausting, and it resolves nothing, because the analysis is not really thinking. It is suffering wearing the mask of problem solving. Here is how to switch it off.
Most of what you are decoding is noise
The fuel of overthinking is the tiny signal that feels loaded with meaning: the exact reply time, whether they used a period, whether they liked a post before answering, the single word that could mean five things. Almost all of it is genuinely noise, the random texture of a busy person's phone habits, and reading meaning into it is not insight. It is anxiety generating false signal from static.
The signals that actually carry information are big and simple: whether they initiate, whether they reach back with something of their own, whether the warmth builds over time. You do not need a microscope to see those. When you find yourself deep in the micro signals, that is itself the signal, not about them, but about you, that your steadiness has slipped.
The loop is not thinking, so do not try to out-think it
Rumination feels productive and is not; it circles the same scene without ever reaching a decision. You will not find the answer at three in the morning, because there is no answer to find there. The way out is not more analysis but a change of state. When you catch a loop starting, name it, then do something physical: stand up, go outside, do something with your hands, leave the room. You interrupt loops with the body, over and over, until they lose their grip. Attention training makes this much easier, and the Greater Good Science Center at UC Berkeley keeps free, practical mindfulness exercises built for exactly this.
Ride the wave, do not feed it
An urge to reread the thread, or to fire off another message, will rise, feel unbearable, insist that this time is different, and then, if you do not act on it, crest and fall within about twenty minutes. The whole skill is letting the wave move through you without acting, because the urge lies about its own permanence. Each wave you ride without acting teaches your nervous system that it is survivable, which makes the next one smaller.
Overthinking is also a stress problem, and a keyed up body overthinks more. The American Psychological Association's overview of stress is a useful reminder that calming the body is not separate from calming the mind; sleep, movement, and steady routines lower the baseline that the loops feed on.
Two rules that end most of the spiral
First, when you have sent a message, send no more until a real reply comes. One message, then wait. A slow reply is almost always their ordinary life, not a verdict, and a second message into silence turns a warm open door into a plea. Second, put the phone in another room. The whole problem is that checking requires no effort; make it require effort and the spiral loses most of its power.
Underneath all of it is the same truth this whole approach returns to: the only way to read an ex accurately, and to stop overthinking them, is to be steady enough that you do not need the answer to be anything in particular. That steadiness is built, not summoned, and The Reset walks through building it day by day. If your overthinking is really about reading mixed signals, our guide to whether your ex still has feelings can settle a lot of it.