Yeah, I gotta go with tommy here - I don't play Omaha that much, but all you had was top 2 with no reasonable redraw outs. Any open-ender, flush draw or trips had you down to close to a flip. Even if CCBAM - while his call (imho) was pretty loose, he probably figured you for 2 pr or a str8 draw, so he knew he could make some cash if another 2 dropped.