Q&A What Affair Type Category Does an Entire Second Identity Fall Under?

My husband was engaged in online dating profiles - talking to multiple women - sending very sexually explicit videos, photos, and messages. He sent them pictures of himself while on vacations with me, obviously I was not in the pictures, and told these women he wanted them there with him and all these things he would do to them & with them - meanwhile denying me any sort of intimacy. I found that this has been going on and off the entire relationship. He has slept with two of them as one night stands, according to him. He has this whole other identity, even uses a false name and a burner phone. Discovering all this has been incredibly difficult. What kind of infidelity category does this fall under? Is it a form or sex addiction or live porn type addiction? The chase? I just don’t know where it falls.