1. Disrespecting emotions: A person who refuses to even reply goodnight may not value communication with you and may not consider you an important communication partner, showing disrespect towards the relationship.
2. Communication barrier: This behavior may indicate communication barriers between both parties, and the other party may choose to avoid due to personal reasons such as busyness or emotional fluctuations, but this should not be a reason to ignore others' feelings.
3. Consider your own feelings: Faced with such a situation, it is recommended that you examine your expectations and investment in this relationship, and consider whether it is worth continuing to invest in emotions and energy. At the same time, it is also necessary to express one's feelings, engage in open and honest communication with the other party, and see if ways to improve can be found. If communication is unsuccessful, it may be necessary to consider adjusting one's position in the relationship or choosing to let go.