The dropping of the solider thing on eviction night was directly related to the boos Deana received. Luke A and Adam only became tired of it then. Embarrassed and quick to disassociate themselves because Deanna was booed
Deana recognised this but she's a good friend.
Luke A in particular and Adam realised that although saved, Deana is perceived negatively by the eviction crowd and perhaps more widely. Maybe for her mocking of Luke S or the solider thing. Or just for being a witty brave strong beautiful gal.
They are all playing the game of positive association. Except Luke S who knows that what's on the outside goes a long way with the fantasist voter.