Lois runs into an ex-boyfriend while shopping. Knowing Peter would be jealous, she has coffee with him behind Peter's back. Peter, while hanging with the guys in Joe's new police surveillance van, spot Lois. Angered, Peter tries to make Lois jealous by having prostitutes pose as his old girlfriends. After a marriage therapist suggesting a trial separation, Quagmire makes his move on Lois, and Peter goes on his own date... with actress Jennifer Love Hewitt. Meanwhile, Stewie and Brian become superglued together, and must deal with each other waiting for the solvent to arrive, and actually warm up to one another.