I ditto KML. Be on the offensive by protecting what you do have. It is your share. He bought a house with another woman using your money! Who knows what else is coming? A new car for her? Jewelry? It costs a lot of money in fees to go after your share once he takes it.
Be proactive.
Me 41, H 47, M 15 yrs, S11, S13 BD 1: 11/4/14 we work on it; really I pretzel myself BD 2: 3/31/15 H goes down to "dorm room" 8/15: H back to MBR 10/15: H back in dorm room 1/18: H files, now divorced