What are the feelings in the tired sentences?

1. I gradually know that many things can be met but not sought, and they don't belong to me, so why bother to care.

2. Commitment is a blank sheet of paper. No matter how thick the script is, it has an ending. I think I know the taste of tears. Even if I pay every minute, I never want to escape every second. There is no lasting happiness in this world, only instant comfort and comfort.

3. The person who taught you the initial dance steps may not be able to accompany you to the end.

4. Everyone will meet someone who can't be together in his life. Many times, we think that it is an irresistible strong love, and finally we experience sad parting, thinking that life's regret is nothing more than that. Times have changed, and looking back at those absurd years, we should thank the original choice, because we begin to understand that the person who can't be together is actually the wrong person.

5. I'm so tired that I don't even have the strength to be angry and care. When we say "nothing", it is often the most uncomfortable time.