Need help with ruling

[fraserbrown]

Last night with a ~$650 pot with three players all-in, myself and the player to my left table a J high straight, player to my right shows 9 high straight and fourth playe says "I'm [censored]" and tosses cards forward, face down. Her boyfriend grabs her crds from the edge of the muck and says turn them over anyway and HE flips them over, showing a full house. I call the floor and it is ruled that she did not muck and her hand holds up. To me this is the completly wrong decision as she made a verbal and physical indication of conceding the hand, it also helped her that 4 or 5 of her friends were at the table and disputed what myself and the other guy with the straight said. Is this the correct ruling of am I an angleshooting douche?