Love conquers all?

Repairing to a local hostelry for refreshment last night, we were entranced by the sight of a pair of young lovers nearby. He - bearded, scruffy in a designer kind of way - patiently sat there while she - blonde, fashionable - tenderly pulled out locks of his nasal hair.

Is this normal? Would you let your partner do this to you, in public or in private? Personally, I'm not keen. It's probably quite painful, invasive and rather domineering. And revolting. Did I mention how revolting this tableau was?