It was good. Then, without a fight or an obvious cause, he went cool — slower, shorter, harder to reach. The suddenness is the part that makes it unbearable, because your mind fills the blank with the worst version. Here is what the blank usually actually contains.
A note on which page this is. If this runs on a loop — hot, then cold, then hot again — read he runs hot and cold. If he told you he needs to focus on himself, read he says he needs to focus on himself. This page is for the first, sudden, unexplained drop.
The three things it usually is
An outside stressor. Work, family, money, his own mental health — something unrelated to you spiked and his bandwidth for the thread collapsed. This one is real, it is common, and it genuinely is not about you, even though it can feel identical to rejection from the inside.
An avoidant pullback. Things got closer — a good weekend, a vulnerable conversation, a step forward — and the closeness itself tripped an alarm. For someone wired toward avoidant attachment, intimacy and pressure read as the same signal, and the reflex is to create distance to feel safe again. The distance arrives because it was going well, which is why it feels so backwards.
A quiet recalibration. Less pleasant, equally possible: his interest shifted and he is easing off without saying so. No announcement, just a gradual turning-down of the dial.
You cannot reliably tell these apart from the outside in the first week, and — as with most withdrawal — you do not need to, because the correct response is the same for all three.
The move
The instinct is to close the distance fast — to ask what is wrong, then ask again, then start proposing fixes. Against every one of the three causes, that fails. It adds pressure to someone already overloaded, it confirms the threat for someone who pulled back because of closeness, and it hands a recalibrating person proof the thread runs on your anxiety. One warm, genuinely low-pressure check-in does the opposite: it keeps the door open without leaning on it, and then your willingness to give real space is what makes returning feel safe instead of costly.
What his response tells you
He comes back with real presence and maybe an explanation → it was the stressor or the pullback, and your steadiness gave him the room to return. He stays distant but not gone, running warm-then-cool → you are likely looking at mixed signals, and you read the pattern over time rather than the peaks. He keeps drifting no matter the space you give → it was a recalibration, and the space let you learn that early, before you spent months trying to earn back a version of him that had already left.
For the withdrawal wiring underneath, see avoidant attachment; for the full framework, see the DarkoApp doctrine.