  We study the impact of a binary companion on black hole superradiance at
orbital frequencies away from the gravitational-collider-physics (GCP)
resonance bands. A superradiant state can couple to a strongly absorptive state
via the tidal perturbation of the companion, thereby acquiring a suppressed
superradiance rate. Below a critical binary separation, this superradiance rate
becomes negative, and the boson cloud gets absorbed by the black hole. This
critical binary separation leads to tight constraints on GCP. Especially, a
companion with mass ratio $q>10^{-3}$ invalidates all GCP fine structure
transitions, as well as almost all Bohr transitions except those from the
$|\psi_{211}\rangle$ state. Meanwhile, the backreaction on the companion
manifests itself as a torque acting on the binary, producing floating/sinking
orbits that can be verified via pulsar timing. In addition, the possible
termination of cloud growth may help to alleviate the current bounds on the
ultralight boson mass from various null detections.
