I'm worried about DH, he's very busy and stressed at work and caring for an elderly family member. Home life is calm, no arguments but we haven't had sex in over 2 years and if I approach him in that way he freezes and says his head isn't in the right place. He moved to the spare room last March and seems to panic if I go to cuddle or kiss him. No signs of cheating or anything like that, he just seems really closed off. Any thoughts?