What would you not give up for love?

The romantic framing of early relationships tends to emphasize what people would do and sacrifice for love. The reverse question is more revealing. The line that won't move — the career, the city, the child-free preference, the relationship with a particular family member, the creative work that predates any romance — tells you the actual shape of what's possible. Not the ideal, not the aspiration, but the real constraint. This question is particularly important because the lines tend to be non-negotiable in practice even when people believe themselves to be flexible. 'I'd consider moving for the right person' usually means 'I probably won't move.' 'I'm open to kids if you really want them' usually means 'I have doubts about this.' What someone won't give up tells you who they actually are, rather than who they'd like to be in the context of early-stage romance.