He knows that the only way he can accept losing her is if he can continue to hold her or be held by her. If they can somehow nurse each other out of this. Not with a wall.
These are the times that try men's souls. The summer soldier and the sunshine patriot will, in this crisis, shrink from the service of their country; but he that stands it now, deserves the love and thanks of man and woman. Tyranny, like hell, is not easily conquered; yet we have this consolation with us, that the harder the conflict, the more glorious the triumph. What we obtain too cheap, we esteem too lightly; it is dearness only that gives everything its value. I love the man that can smile in trouble, that can gather strength from distress and grow brave by reflection. 'Tis the business of little minds to shrink; but he whose heart is firm, and whose conscience approves his conduct, will pursue his principles unto death.
I honestly believe you can never tell if a relationship is going to last. In my own marriage, which is going on 14 years, I don't think of it as 'I'm going to be with this person forever.' Instead, I think of more like, 'I'll probably be with this person for the next six weeks. Then I'll re-evaluate.'
God has lent us the earth for our life; it is a great entail. It belongs as much to those who are to come after us, and whose names are already written in the book of creation, as to us; and we have no right, by anything that we do or neglect, to involve them in unnecessary penalties, or deprive them of benefits which it was in our power to bequeath.