A Cryptic Valentine

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Across
  1. 3. Is double article Christian?
  2. 4. Bumping people around without end, I hear
  3. 8. Happy missing finale, then feeling sick
  4. 11. Mixed reality dropping AI
Down
  1. 1. Maybe before they all go marching down - for the seventh time!
  2. 2. To life! (Mostly in retrospect)
  3. 5. Am not to be in Western Hemisphere?
  4. 6. Just feeling lousy
  5. 7. Spanish year still holding number back
  6. 9. Adjustments at no cost
  7. 10. Boy, Disparage expressing excitement