A gay-pride celebration for Ellen DeGeneres exploded in a furious bust-up with wife Portia de Rossi! The embattled couple was at a private party toasting Ellen’s 20-year anniversary of coming out as a lesbian when spies for Radar caught them locked in an ugly hissy fit! “Portia kept trying to talk to Ellen, but Ellen wouldn’t even look at her as she screeched out of the parking lot!” The two have been living apart as they struggle yet again to save their marriage!