Could gravity be a weak force because gravitons are absorbing gravitons before they reach a target rest mass?

Question

Could gravitons be similar to the gluons in the colour force? Can gravitons absorb other gravitons before they reach their target rest mass?

Answer 1

Classical general relativity has many well-known phenomena involving gravitational fields interacting with themselves, most dramatically the geon solutions which describe gravitational radiation collapsing to a black hole.

Since classical general relativity has self-interacting gravity, it would make sense for there to be solutions where gravitons absorb and emit other gravitons in a full quantum gravitational theory, but this is unrelated to why one would expect gravity to be weak (as you said, gluons absorb and emit gluons, and no one would characterize the strong force as "weak")