Does the phrase "I don't want to have intercourse now" or "I am not able to right now," said by a husband to his wife when she requests intercourse, affect the marital bond?

These phrases do not affect the marital bond, because they are neither an explicit divorce nor an allusion to it. Al-Shafi'i says that uttering something that does not resemble divorce does not bring it about, even if it was intended. Ibn Qudamah mentions that words that do not imply divorce, such as "sit down" and "eat," do not bring it about, even with the intention. We advise avoiding obsessive thoughts.