Hulk took her out into the cold winter air tot he edge of the Pier. They were a good distance away from the fight and it'd be awhile before they'd think to look in this area. In the mean time his new friend needed to cool off before she end up in The Cube, which was Banner's biggest concern. He was such a bossy voice in Hulk's head.
"Okay,Hulk drop you," He proceeded to lower his hand and Betty into the frigid water then hoisted her back. "Drop again?"