My last girlfriend would have scowled at this admission and replied, in her stern, cold voice, "Boundary issues!"
Well, perhaps. But I recall a moment from decades ago, on a playing field back in school, when someone was hit by a soccer ball right in the groin. He clutched at himself, staggered, nearly fell over... and all around him, the other boys gaped in sudden sympathetic agony. At moments like this, boundaries vanish.