disappointed feeling sad

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Across
  1. 4. dark colour
  2. 5. many different types
  3. 8. not straight
  4. 10. given choices
  5. 11. keep an animal as their own
  6. 12. feeling sad
  7. 14. environment
  8. 15. look like silk
  9. 16. something bad happened
  10. 18. certainly
Down
  1. 1. throw away
  2. 2. keep itself comfortable
  3. 3. can spread
  4. 6. happened not long ago
  5. 7. just like Covid-19
  6. 9. not cheap
  7. 13. attention glued on something
  8. 16. able to reach something
  9. 17. a green animal