"his confidence has taken a massive knock) but I'm so incredibly annoyed and I don't know if I can get past this in terms of how I see him."
"Please tell me it's possible to regain respect once it's lost" - wtf??
Sounds as though you are being entitled and see your family situation as an inconvenience and as though this is something to blame your DH for. If you 'work in a senior role' why don't you concentrate on improving your salary to reflect on your 'senior role' to be able to support your DH instead of crying poor me on MN?
Would you find your nice husband who's also a good father, throwing a pity party full of resentment if the situation was reversed?
Marriage is about team work, being there and supporting each other at all times, even the tough ones. Sit down and work out how you can get through this crisis together.
My DH went to work one morning and suffered a spinal injury. He was 29, the main bread winner. We had a blended family of 5 children two under 4. One at uni, a mortgage and I only worked part time. We had holidays booked, building work going on...BUT we managed, cutting cloth accordingly. They thought he'd be in a wheelchair by the time he was 40 and to limit his life expectations. He had severe depression, suffered intense pain and several ops later began to rebuild his health. It took nearly 3 years for him to recover and get back to work and but we survived. It was tough, I carried us and at times felt exhausted and frustrated.... and sure I could have blamed him for changing and limiting our immediate future but where would it have got us? I was only too grateful every day after his accident that he actually survived.
You need to alter your mindset OP, become his biggest supporter and muddle through, even if it means coming back to UK, living in a smaller house. Would that really be the end of the world?