I haven't been posting much, but have lurked and kept up on everyone's situation.
I am sorry to hear about what APPEARS to be a not-so-happy event in your sitch.
Maybe H wanted you to find out about the house. Maybe for some unknown reason he has some sense of obligation to OW, even though he wants to be married to you? some tie which doesn't mean he is in love with her or wants to be with her?
Is is possible to give him the benefit of the doubt until proven otherwise?
I know you must be on pins and needles regarding not hearing from him, but didn't you expect it to be this way? did he indicate when he left that he would be in touch? I guess I can see it with you, but no with your D. He has to be totally in left field as he has not been in touch with her.
I don't know, Opt. I do see, however, that you seem outrageously calm about all of this...which means that perhaps your inner gut is telling you that all will be ok. go with it, and try not to stress.