The One With The Lesbian Wedding

Ross's ex and her lesbian lover tie the knot, providing Monica with a job: catering the wedding. Phoebe is possessed by the spirit of an eighty-two year old massage client who dies in the middle of a session. Mrs. Adelman cannot depart until she's "seen everything" (needless to say, her spirit departs after the lesbian wedding). And Rachel's mom comes to visit and drops a bombshell: she's getting divorced from Rachel's dad.