How to use "obsessive" in a sentence

Her obsessive fear of intruders in the house, her disquieting dreams about Danny, her renewed grief - all of those things might grow from her concern about Magyck! If that were the case, then those symptoms would disappear as soon as the fate of the show was evident

That was the term by which casino employees still referred to local, elderly women whose social lives revolved around an obsessive interest in one-armed bandits, even though the nickel machines were pretty much ancient history