Aww, that's sweet.
He's talking about his very rich wife. He doesn't love her but without her he gets nothing.
because of an ironclad pre-nuptial agreement
Bil'adeha ein li klum
בלעדיך אני חצי בן-אדם~
♪ בִּלְעֲדַיִךְ, אֲנִי בְעֶצֶם כְּלוּם… ♪
Poor self esteem
Say no to emotional dependence :)
could it also be 'aside from her i have nothing'?
No. That would be חוץ ממנה or מלבדה.