Dh has a very demanding and well paid job. It involves late nights and "client" dinners etc. I have learnt to deal with that. However recently he has been home early but has to work in the study a couple of hours later, then comes to bed at 2/3 am. I tried to use his computer last night as my (wireless) laptop was down but have been frozen out by password protection. He seems totally disinterested in me once has been "fed and watered", stating work issues. How would you approach this?