Relocated the family and he dropped the bomb

[MM78]

Well, I went away overnight (with the kids and the dog) and am now back in the house. Looked at the phone bill and he texted OW the entire drive back to our home state. The last text they exchanged was at 12:58am yesterday and nothing since. I can only surmise that they have been together all weekend. I am putting together some of his clothes in a bag and when I see him I might be ready to tell him to go find a hotel. I'm not sure what to do next. I'm not sure to apply for jobs back in our home state or not do anything. I am beside myself. I'm not sure if I should wait up for him since I expect him home at 2am or wait until he comes home from work tomorrow night. I'm not sure if he tells me he did see her and has ended all contact if I should let him stay here or push him out anyway. His mom told me she got a text that he is 'loosing his mind, trying not to hate life, and getting help'.

I'm lost. Heartbroken. Alone.