Can I file a fault divorce because of a form of adultery and receive alimony if he has already filed.

We got married 5 years ago on the 10th. He intentionally refrained to inform me of his sexual indiscretion. I at a later date, almost a year and a half later come across a VCR tape with him doing unspeakable and disgusting things to himself with a machine, needless to say I wasn't OK with it and feel as if he cheated on me not to mention deceived me from the beginning. I worked with him as well, as of yesterday I lost my job of 6 years all of the sudden after I find out when he comes back from vacation he is moving out and going to his mom's to give me divorce papers and then have his mom serve me with an eviction notice. Because the house we reside in is in his mother's name due to his last divorce it's not in his name. What should I do.