The length of time you can keep silent with a person you love will depend on a variety of factors, including the nature of your relationship, the reason for your silence, and the communication skills of both parties.
In general, it's not healthy to keep silent for extended periods of time with someone you love. Communication is an essential part of any healthy relationship, and prolonged silence can cause misunderstandings, resentment, and a breakdown in trust.
If you're finding it difficult to communicate with your loved one, it may be helpful to seek the assistance of a relationship counselor or therapist. They can provide you with the tools and strategies you need to improve your communication skills and strengthen your relationship.
Ultimately, the best course of action is to address any issues or concerns openly and honestly with your loved one, rather than resorting to prolonged periods of silence.